Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** In this role you'll work closely with Duolingo’s Math team to deeply integrate AI into the math curriculum — reimagining how learners interact with concepts like arithmetic algebra and word problems. You’ll have the opportunity to design and ship AI-powered experiences that make math more intuitive engaging and personalized. Reporting to the engineering lead (with potential for evolving reporting lines) you’ll join a small high-leverage group helping define how AI enhances learning at Duolingo. We're particularly interested if you've previously built production-level apps enhancing them with advanced AI techniques and if you're skilled in comprehensive system evaluations—using both automated tools and human feedback to ensure top-notch performance. ##### **  You will...** - Revamp the math session generator and integrate AI into the math curriculum to foster enhanced learning experiences. - Develop and implement cutting-edge AI features into production-level applications. - Conduct thorough system evaluations leveraging both automated tools and human feedback to guarantee superior product quality and performance. - Optimize AI algorithms to enhance their efficiency and effectiveness - Implement feature engineering to refine algorithm predictions and drive improved performance. ##### **  You have...** - Bachelor's degree in Computer Science Artificial Intelligence or related field - Experience building production-grade apps with LLMs - Portfolio of projects demonstrating integration of AI into learning tools or platforms * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $213 600—$384 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As a Platform Engineer on the CI CD team you will have direct impact on the work of our entire engineering organization and will help ensure our platform is always available for our learners. The CI CD team builds and maintains the automated pipelines that power our software development lifecycle. We're responsible for ensuring the rapid reliable and secure delivery of our products from code commit to production deployment. You will play a key role in optimizing and scaling these pipelines enabling our engineers to ship features quickly and confidently while maintaining the highest quality standards. ##### **  You will...** - Design and implement tools that help engineering teams focus on shipping features while making sure we're building infrastructure that is reliable secure and cost efficient. - Streamline operational and development practices making sure we provide an effective self-service platform to other Duolingo engineers. - Monitor our infrastructure and develop strategies to keep our costs within budget and properly manage our capacity. ##### **  You have...** - Demonstrated expertise in problem solving and technical innovation. - Technical experience in distributed systems including: databases caching inter-service communication networking and cloud services. - Excellent communication skills. - Relevant work experience including industry experience. - Experience with one or more CI CD tools (Jenkins Argo CD GitHub Actions) and infrastructure management tools (Terraform CloudFormation) - Familiarity with containerization runtimes (Docker rkt) - Functional knowledge of Linux system administration and automation ##### **  Exceptional candidates will have...** - Extensive experience in fast-growing consumer-facing data-driven startups ideally mobile app based. - A Bachelor’s degree in Computer Science or related technical field - Experience managing a large infrastructure on AWS or Google Cloud - Extensive experience with relational and no-SQL database management * * * Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * **  You Will...** - Manage optimize and secure our SaaS application portfolio including overseeing our identity management system. - Lead IT automation projects improving security workflows and infrastructure as code. - Develop automation for employee lifecycle processes streamlining account provisioning device enrollment and software access. - Support IT Helpdesk and Workplace Tech Teams assisting with system integrations and troubleshooting. - Continuously enhance IT systems using feedback and best practices to drive efficiency. - Troubleshoot network identity and security issues ensuring reliable and secure IT operations. - Identify inefficiencies propose automation solutions and introduce new technologies to improve IT workflows. ** You Have...** - 5+ years of experience in IT Operations with a broad skill set in IT infrastructure and SaaS management. - Advanced experience in identity and access management (IAM) with hands-on management of platforms like Google Workspace and Okta. - Hands-on experience using infrastructure as code to automate IT systems. - Strong experience managing a fleet of computers through an MDM system like Jamf demonstrating an understanding of device management in a distributed environment. - A proven track record of leading projects wrangling complex problems proposing innovative solutions and focusing on results driven by metrics. - Familiarity with version control tools like GitHub and experience using AWS or GCP for CI CD pipelines contributing to automation and DevOps practices. - Experience building Slack Bots and using automation with Bash Python to design effective solutions for various scenarios. - Excellent communication and prioritization skills with solid customer service awareness and the ability to work well with others across different levels of the organization. - Expert knowledge in Apple macOS and a solid understanding of network fundamentals. ** Exceptional Candidates Will Have...** - Over 7 years of IT operations experience in IT Operations - Advanced knowledge in scripting and automation capable of writing custom scripts to automate repetitive tasks and enhance system integrations. - Exceptional proficiency in integrating and optimizing development workflows with version control systems and cloud-based CI CD pipelines to facilitate seamless operations and team collaboration. - Active participation in IT knowledge-sharing initiatives such as writing technical documentation leading internal training or presenting at industry events. - A history of mentoring team members and leading by example in both technology adoption and process improvements fostering a culture of learning and growth. - Demonstrated ability to identify inefficiencies and implement innovative solutions that improve IT systems and processes showcasing creativity adaptability and a commitment to continuous improvement. - Experience with VPN solutions like Tailscale or extensive experience in troubleshooting wireless issues and implementing RADIUS for wireless authentication indicating a solid ability to enhance network security and efficiency. * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $112 200—$192 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an Engineering Director at Duolingo you'll have the unique opportunity to shape the future of language learning by leading a talented team of engineers in developing innovative solutions. This role combines strategic thinking technical skill and team leadership requiring you to oversee project management drive technical direction and foster a culture of collaboration and growth. **Social Area:** - You'll be an engineering lead of the newly created Social Area within our user growth organization focused on solving one of the hardest problems for our learners: staying motivated. Your teams will build new social features and improve existing ones like Leaderboards Friends Quests Kudos and the Feed; grow the in-app social graph (e.g. Follow Suggestions User Search); and strengthen learner identity (e.g. Profile and Avatars). **  You will...** - Supervise teams under the Social Area to help drive strategies and roadmap - Develop and manage other managers - Balance ambitious 0->1 product innovations thoughtful iteration on existing features and engineering excellence work - Provide guidance on scalable high-quality system design and technical decision **  You have...** - Experience developing and leading software engineering teams and setting technical direction - Consistent track record managing managers and mentoring technical leaders - Extensive experience in rapid-growth consumer-facing data-driven companies - Demonstrated ability to collaborate effectively in ambiguous fast-paced and unstructured settings - Excellent written and verbal communication skills **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * **About the role...** As an iOS engineer on the Listening and Speaking Team you’ll build technology that breaks down language barriers and makes it truly fun to learn. You’ll work on engaging immersive experiences such as duoradio and roleplay that enable learners to use their language skills in the real world. In addition you’ll help ensure that this content is ready for learners of all levels across dozens of languages. We’re looking for engineers who are passionate about building new features to further our mission of making education freely available to everyone. **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain native iOS applications primarily in Swift - Mentor and set technical direction for junior engineers across the company **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - A solid foundation in computer science with strong competencies in data structures algorithms and software design - Programming experience in Swift **  Exceptional candidates will have...** - A minimum of 5 years of programming experience in Swift - Strong technical knowledge of iOS mobile application development for iPhone iPad using Swift with Cocoa Touch and related frameworks - Experience designing clean and maintainable APIs - Experience with multithreaded programming - Experience writing unit tests and testable code - Knowledge of iOS SDK performance tools and optimization techniques * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** We are looking for an experienced AI Research Engineer to join our Duolingo English Test security team. The ideal candidate will have a proven track record as an AI research engineer with extensive experience in developing training and fine-tuning large neural networks. On the security team we're building AI systems to help detect fraudulent testing behavior. These state-of-the-art systems range from biometric signals like keystroke signatures to vision and sound models to gaze [tracking](https: arxiv.org pdf 2409.16923) or language models to [detect](https: aclanthology.org 2024.emnlp-industry.70.pdf) whether a test-taker used an LLM to generate their answer. Given the broad set of AI domains broad experience in AI ML is highly desirable. ##### **  You will...** - Join a team of backend and AI Research engineers fostering a collaborative and innovative work environment. - Contribute to the development and fine-tuning of large-scale neural network models with a focus on agentic AI. - Collaborate with cross-functional teams to understand their needs to align the agentic models outputs with company objectives. - Stay up-to-date with the latest developments in machine learning particularly in LLMs and agents and apply this knowledge to drive advancements in our projects. - Mentor team members providing guidance and support in their professional development. - Ensure the delivery of high-quality scalable and efficient machine learning solutions. ##### **  You have...** - Proven experience as an AI research engineer for example in LLMs computer vision or related fields. - Strong background in training and fine-tuning large neural networks. - Advanced degree in Computer Science Engineering or a related field with a focus on machine learning or artificial intelligence. - Excellent leadership and communication skills with the ability to manage and inspire a team. - Deep understanding of machine learning concepts frameworks and best practices. * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $213 600—$384 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * **  You Will...** - Manage optimize and secure our SaaS application portfolio including overseeing our identity management system. - Lead IT automation projects improving security workflows and infrastructure as code. - Develop automation for employee lifecycle processes streamlining account provisioning device enrollment and software access. - Support IT Helpdesk and Workplace Tech Teams assisting with system integrations and troubleshooting. - Continuously enhance IT systems using feedback and best practices to drive efficiency. - Troubleshoot network identity and security issues ensuring reliable and secure IT operations. - Identify inefficiencies propose automation solutions and introduce new technologies to improve IT workflows. ** You Have...** - 5+ years of experience in IT Operations with a broad skill set in IT infrastructure and SaaS management. - Advanced experience in identity and access management (IAM) with hands-on management of platforms like Google Workspace and Okta. - Hands-on experience using infrastructure as code to automate IT systems. - Strong experience managing a fleet of computers through an MDM system like Jamf demonstrating an understanding of device management in a distributed environment. - A proven track record of leading projects wrangling complex problems proposing innovative solutions and focusing on results driven by metrics. - Familiarity with version control tools like GitHub and experience using AWS or GCP for CI CD pipelines contributing to automation and DevOps practices. - Experience building Slack Bots and using automation with Bash Python to design effective solutions for various scenarios. - Excellent communication and prioritization skills with solid customer service awareness and the ability to work well with others across different levels of the organization. - Expert knowledge in Apple macOS and a solid understanding of network fundamentals. ** Exceptional Candidates Will Have...** - Over 7 years of IT operations experience in IT Operations - Advanced knowledge in scripting and automation capable of writing custom scripts to automate repetitive tasks and enhance system integrations. - Exceptional proficiency in integrating and optimizing development workflows with version control systems and cloud-based CI CD pipelines to facilitate seamless operations and team collaboration. - Active participation in IT knowledge-sharing initiatives such as writing technical documentation leading internal training or presenting at industry events. - A history of mentoring team members and leading by example in both technology adoption and process improvements fostering a culture of learning and growth. - Demonstrated ability to identify inefficiencies and implement innovative solutions that improve IT systems and processes showcasing creativity adaptability and a commitment to continuous improvement. - Experience with VPN solutions like Tailscale or extensive experience in troubleshooting wireless issues and implementing RADIUS for wireless authentication indicating a solid ability to enhance network security and efficiency. * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $112 200—$192 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ##### Below you can find more information about the teams we're hiring for: **DevX AI Team:** The DevX AI team empowers engineers at Duolingo to be more effective by introducing AI-infused tools that simplify workflows and reduce friction and toil. As a Staff Engineer in the team you’ll play a pivotal role in shaping the future of engineering at Duolingo. You will define the strategy and architecture of AI-driven developer tools mentor senior engineers and drive high-leverage initiatives that touch every part of our software lifecycle. You will build developer tooling that amplify the impact of engineers including productionizing an MCP infrastructure to connect with AI coding agents. ##### **  You will...** - Develop release and maintain backend services and or infrastructure - Introduce and iterate on developer tools and advocate for adoption - Collaborate on projects with developers across the company - Lead individual project priorities milestones and ensure we're always shipping ##### **  You have...** - A Bachelor’s degree in Computer Science or related technical field - Strong competencies in data structures algorithms and software design - Experience programming in Java Python or Kotlin - Experience working closely with customers and building products that they love ##### **  Exceptional candidates will have...** - Industry experience with full stack development for iOS or Android - Industry experience building high-traffic products using public cloud providers - Experience integrating AI ML systems into developer-facing tools including prompt design model evaluation or agent workflow orchestration **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $200 000—$360 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** ##### **Client Architecture Team:** - As an engineer on the Client Architecture team you’ll be responsible for evaluating and setting the direction of Android architecture. This includes continuing to evolve our MVVM architecture the exploration and integration of modern technologies like coroutines and Jetpack Compose and leading the adoption of these across a large-scale Android organization. ##### **  You will...** - Represent the team in architectural discussions and stakeholder conversations serving as a bridge between Client Platform and Product feature teams - Work within our Client Platform area to create and maintain the foundational building blocks of our application infrastructure - Foster a culture of engineering excellence and mentor engineers of all experience levels - Explore prototype and implement improvements to our existing application architecture to enable engineers to build stable performant and well-tested product features ##### **  You have...** - 6+ years of Android software engineering experience 1-2+ years developing scalable production software and an excellent command of engineering fundamentals - Deep expertise in Kotlin and coroutines concurrency primitives - Proficiency in native Android development using standard tools and frameworks ##### **  Exceptional candidates will have...** - Knowledge of Android SDK performance tools and optimization techniques - Experience developing and leading long-term technical strategy - Deep understanding of testing best practices - Working knowledge of modern AI tooling * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $177 700—$300 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** In this role you’ll lead efforts to incorporate cutting-edge AI to make language lessons more dynamic personalized and effective. You’ll collaborate with cross-functional partners to architect test and deploy AI-driven enhancements that directly impact millions of users. Reporting to the engineering lead (with room for evolution) you’ll help shape the future of AI-powered language learning. We're particularly interested if you've previously built production-level apps enhancing them with advanced AI techniques and if you're skilled in comprehensive system evaluations—using both automated tools and human feedback to ensure top-notch performance. ##### **  You will...** - Revamp the language session generator and integrate AI into the curriculum to foster enhanced learning experiences. - Develop and implement cutting-edge AI features into production-level applications. - Conduct thorough system evaluations leveraging both automated tools and human feedback to guarantee superior product quality and performance. - Optimize AI algorithms to enhance their efficiency and effectiveness - Implement feature engineering to refine algorithm predictions and drive improved performance. ##### **  You have...** - Bachelor's degree in Computer Science Artificial Intelligence or related field - Experience building production-grade apps with LLMs - Portfolio of projects demonstrating integration of AI into learning tools or platforms * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $213 600—$384 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ##### Below you can find more information about the teams we're hiring for: **DevX AI Team:** The DevX AI team empowers engineers at Duolingo to be more effective by introducing AI-infused tools that simplify workflows and reduce friction and toil. As a Staff Engineer in the team you’ll play a pivotal role in shaping the future of engineering at Duolingo. You will define the strategy and architecture of AI-driven developer tools mentor senior engineers and drive high-leverage initiatives that touch every part of our software lifecycle. You will build developer tooling that amplify the impact of engineers including productionizing an MCP infrastructure to connect with AI coding agents. ##### **  You will...** - Develop release and maintain backend services and or infrastructure - Introduce and iterate on developer tools and advocate for adoption - Collaborate on projects with developers across the company - Lead individual project priorities milestones and ensure we're always shipping ##### **  You have...** - A Bachelor’s degree in Computer Science or related technical field - Strong competencies in data structures algorithms and software design - Experience programming in Java Python or Kotlin - Experience working closely with customers and building products that they love ##### **  Exceptional candidates will have...** - Industry experience with full stack development for iOS or Android - Industry experience building high-traffic products using public cloud providers - Experience integrating AI ML systems into developer-facing tools including prompt design model evaluation or agent workflow orchestration **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $200 000—$360 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * **About the role...** As an iOS engineer on the Listening and Speaking Team you’ll build technology that breaks down language barriers and makes it truly fun to learn. You’ll work on engaging immersive experiences such as duoradio and roleplay that enable learners to use their language skills in the real world. In addition you’ll help ensure that this content is ready for learners of all levels across dozens of languages. We’re looking for engineers who are passionate about building new features to further our mission of making education freely available to everyone. **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain native iOS applications primarily in Swift - Mentor and set technical direction for junior engineers across the company **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - A solid foundation in computer science with strong competencies in data structures algorithms and software design - Programming experience in Swift **  Exceptional candidates will have...** - A minimum of 5 years of programming experience in Swift - Strong technical knowledge of iOS mobile application development for iPhone iPad using Swift with Cocoa Touch and related frameworks - Experience designing clean and maintainable APIs - Experience with multithreaded programming - Experience writing unit tests and testable code - Knowledge of iOS SDK performance tools and optimization techniques  * * * Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** In this role you'll work closely with Duolingo’s Math team to deeply integrate AI into the math curriculum — reimagining how learners interact with concepts like arithmetic algebra and word problems. You’ll have the opportunity to design and ship AI-powered experiences that make math more intuitive engaging and personalized. Reporting to the engineering lead (with potential for evolving reporting lines) you’ll join a small high-leverage group helping define how AI enhances learning at Duolingo. We're particularly interested if you've previously built production-level apps enhancing them with advanced AI techniques and if you're skilled in comprehensive system evaluations—using both automated tools and human feedback to ensure top-notch performance. ##### **  You will...** - Revamp the math session generator and integrate AI into the math curriculum to foster enhanced learning experiences. - Develop and implement cutting-edge AI features into production-level applications. - Conduct thorough system evaluations leveraging both automated tools and human feedback to guarantee superior product quality and performance. - Optimize AI algorithms to enhance their efficiency and effectiveness - Implement feature engineering to refine algorithm predictions and drive improved performance. ##### **  You have...** - Bachelor's degree in Computer Science Artificial Intelligence or related field - Experience building production-grade apps with LLMs - Portfolio of projects demonstrating integration of AI into learning tools or platforms * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $213 600—$384 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ##### Below you can find more information about the teams we're hiring for: **Advanced Math Team:** The Advanced Math team uses AI to generate engaging high-quality educational content for teaching advanced math concepts on Duolingo. We work in fast prototype-driven cycles leveraging large language models to push the boundaries of how learners experience math. As a newly-formed team we’re building innovative tools that make even the most complex topics approachable and fun. ##### **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain backend services and or infrastructure - Lead individual project priorities milestones and ensure we're always shipping ##### **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - Strong competencies in data structures algorithms and software design - Experience programming in Java Python or Kotlin - Solid understanding of one or more database technologies ##### **  Exceptional candidates will have...** - Industry experience building high-traffic APIs using public cloud providers _We invest in and support our Duos!_ Hourly Range for this internship is: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. But we’ve got more left to do — and that’s where you come in! Duolingo is the world's most popular learning app. Beyond our core learning product we also offer English proficiency testing with the Duolingo English Test and are bringing new subjects into the Duolingo app where people can develop their Math and Music skills. We are passionate about educating our users making fact-based decisions and finding innovative solutions to complex problems. We offer meaningful work limitless learning opportunities and collaboration with world-class minds. Come brighten your life and over half a billion more! * * * ### **About the role:** As an iOS engineer in our Client Platform Infrastructure Area you will have the opportunity to build all the necessary infrastructure and tools to ensure Duolingo's iOS development can continue to be fast and efficient at scale. We have several different teams you can join responsible for application performance architecture and build tooling and infrastructure. #### **Client Builds and Infrastructure Team:** - As an engineer on the Client Builds and Infrastructure team you’ll be responsible for evaluating and setting the direction for our iOS builds. This includes explorations into Bazel modularization strategies and CI pipeline changes to optimize build times across 70+ iOS developers. #### ******You will...** - Represent the team in architectural discussions and stakeholder conversations serving as a bridge between Client Platform and Product feature teams - Work within our Client Platform Infrastructure area to create and maintain the foundational building blocks of our application infrastructure - Foster a culture of engineering excellence and mentor engineers of all experience levels - Explore prototype and implement prospective tools for scaling our infrastructure such as diving deep into Bazel migration Tuist integration or investigating new platform capabilities #### ******You have...** - 6+ years of iOS software engineering experience 1-2+ years developing scalable production software and an excellent command of engineering fundamentals - Deep expertise in Swift and concurrency primitives - Proficiency in native iOS development using standard tools and frameworks - Ability to relocate to New York NY #### ******Preferred candidates will have...** - Knowledge of iOS SDK performance tools and optimization techniques - Experience supporting either Bazel based-projects or large iOS macOS projects - Experience maintaining a high performance CI pipeline - Deep understanding of testing best practices **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As a Senior Site Reliability Engineer you will work closely with both product and platform engineering teams to ensure Duolingo’s sophisticated distributed systems and products are built and maintained with extraordinary quality and operated in measurable and scalable ways. ##### **  You will...** - Collaborate with internal teams to identify sources of instability in distributed systems and drive operational excellence - Own core infrastructure (i.e understand diagnose and debug these systems in production) - Provide system design consulting develop software platforms frameworks and conduct launch reviews and root cause analysis - Maintain and document sustainable postmortem incident response practices - Advocate for and implement changes that improve reliability scalability and velocity - Reduce the burden of toil with iterative development of tooling and automation - Collaborate with engineering teams to release new features and become an authority on our services ##### **  You have...** - 3+ years of experience within site reliability engineering DevOps of a product with millions of users - Experience identifying and solving issues in large-scale distributed systems - Experience with Java Kotlin Python or Go - Proficiency in networking protocols such as TCP IP HTTP SSL DNS etc - An understanding of containerization toolsets and container orchestration technologies (Docker Mesos Kubernetes Nomad etc) ##### **  Exceptional candidates will have...** - Experience in improving automation and tooling to reduce service maintenance toil - Proven experience driving improvements to incident response processes - Experience assessing reliability and troubleshooting issues in MySQL and or PostgreSQL databases * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $177 700—$300 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an Engineering Director at Duolingo you'll have the unique opportunity to shape the future of education by leading world-class product engineering teams in developing innovative solutions. This role combines strategic thinking technical skill and people leadership requiring you to drive technical and product direction and foster a culture of collaboration and growth. #### Retention Area - Retention Area teams tackle one of the hardest problems for our learners: staying motivated. We address this by improving our core product to be more engaging rewarding and fun. Our teams build and evolve features like the **[Streak](https: www.lennysnewsletter.com p behind-the-product-duolingo-streaks)** **[widget](https: blog.duolingo.com widget-feature )** and our signature notifications along with newer in‑app events (Friends Quest Daily Quests). As one of the most experiment‑driven groups at Duolingo we play a key role in driving daily active users. **  You will...** - Supervise teams under the Retention Area to help drive strategies and roadmap - Develop and manage other managers - Balance new bets and thoughtful iteration on existing features and engineering excellence work - Provide guidance on scalable high-quality system design and technical decisions **  You have...** - Experience developing and leading software engineering teams and setting technical direction - Consistent track record managing managers and mentoring technical leaders - Extensive experience in rapid-growth consumer-facing data-driven companies - Demonstrated ability to collaborate effectively in ambiguous fast paced and unstructured settings - Excellent written and verbal communication skills - Bachelor’s degree in Computer Science or a related technical field * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** ##### **Chess Team:** The Chess team builds engaging educational features through Duolingo’s signature approach to learning. On this team you will shape core product experiences by improving gameplay and creating engaging high-quality course content. As an engineer building [Duolingo's newest product](https: blog.duolingo.com chess-course ) you can expect to move quickly prototype boldly and experiment often ##### **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain native Android application features in Kotlin - Mentor and set technical direction for junior engineers on the team ##### **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - Programming experience in Kotlin on Android - The ability to communicate technical issues effectively to technical and non-technical stakeholders - Ability to relocate to New York NY ##### **  Exceptional candidates will have...** - 5 years of programming experience building reactive Android apps - Demonstrated self-direction with a desire both to learn new techniques and mentor others - Outstanding leadership and negotiation skills - Experience designing clean and maintainable APIs - Experience writing unit tests and testable code * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $177 700—$300 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding innovative solutions to complex technical problems running countless experiments (300+ at a time!) with our substantial user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an engineering manager in the Platform Area you will lead one of our teams in supporting the engineering needs of the rest of Duolingo. **[Listen to why Basim Baig one of our Senior Engineering Managers loves Pittsburgh!](https: www.youtube.com watch?v=X2qbbSgjubE)** ##### **Client Platform Application Stability and Performance:** - This team is charged with improving and maintaining the stability and performance of our Learning application across the Android and iOS platforms. The team builds and owns the tooling that integrates metrics into our experiment analyses to automate finding code areas that need attention and leads architectural initiatives to reinvent the slowest parts of the app. As the Engineering Manager you will craft and implement a vision for maintaining a performant and stable app for Duolingo’s learners collaborating with product partners and engineering teams across the company. **  You will...** - Lead a multi-disciplinary team of iOS and Android engineers. - Deliver and maintain a long term roadmap for work within the team and coordinate that planning with product engineering throughout the company. - Provide a unified set of frameworks tools and accompanying processes that enable teams to observe and improve the Duolingo mobile experience. - Leverage AI to help drive technical projects and provide innovative solutions in a fast-paced environment. - Guide prioritize and communicate the team's quarterly objectives and accomplishments to peer leaders and the broader engineering organization. - Mentor engineers and help cultivate their career aspirations. **  You have...** - 2+ years of experience leading managing and building a team of software engineers. - 8+ years in software development on Android and or iOS including using native and 3rd party tooling to analyze and improve application performance and stability. - Have a record of owning the execution of successful technical projects that span multiple engineers over multiple weeks. - Strong written and verbal communication skills. **  Exceptional candidates will have...** - Experience creating performance pipelines integrated into CI CD workflows. - Experience building custom internal tooling for mobile developers. - Deep understanding of ANRs and profiling tools such as Perfetto or Xcode Instruments. * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $144 500—$294 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * **About the role...** As an iOS engineer on the Listening and Speaking Team you’ll build technology that breaks down language barriers and makes it truly fun to learn. You’ll work on engaging immersive experiences such as duoradio and roleplay that enable learners to use their language skills in the real world. In addition you’ll help ensure that this content is ready for learners of all levels across dozens of languages. We’re looking for engineers who are passionate about building new features to further our mission of making education freely available to everyone. **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain native iOS applications primarily in Swift - Mentor and set technical direction for junior engineers across the company **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - A solid foundation in computer science with strong competencies in data structures algorithms and software design - Programming experience in Swift **  Exceptional candidates will have...** - A minimum of 5 years of programming experience in Swift - Strong technical knowledge of iOS mobile application development for iPhone iPad using Swift with Cocoa Touch and related frameworks - Experience designing clean and maintainable APIs - Experience with multithreaded programming - Experience writing unit tests and testable code - Knowledge of iOS SDK performance tools and optimization techniques * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** ### **Math Team:** - As an Android engineer on the Math team you will help build the technology that changes how people around the world learn Math. The features that you ship will help learners to develop core math skills in a fun engaging way. We’re looking for engineers who love building new products and features. ##### **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain native Android application features in Kotlin - Mentor and set technical direction for junior engineers on the team ##### **  You have...** - A Bachelor’s degree in Computer Science or a related technical field - Programming experience in Kotlin on Android - The ability to communicate technical issues effectively to technical and non-technical stakeholders - Ability to relocate to New York NY ##### **  Exceptional candidates will have...** - 5 years of programming experience building reactive Android apps - Demonstrated self-direction with a desire both to learn new techniques and mentor others - Outstanding leadership and negotiation skills - Experience designing clean and maintainable APIs - Experience writing unit tests and testable code _**Read about [the technical problems](https: blog.duolingo.com tag engineering ?utm_source=careers.duolingo.com ?department=engineering&utm_medium=referral&utm_campaign=eng_job_description) our Engineers work on.**_ * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $144 500—$294 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** We are looking for a Head of Security to own the growth of our Security Program as we continue to scale to more courses and regions. This is an opportunity to shape how security integrates with the way we operate as a company and how our product is built. As Duolingo's Head of Security you will lead a high-leverage organization spanning Platform Security Compliance and Corporate IT. You’ll set strategy coach both managers and individual contributors and be responsible for engineering performance and execution. You will also partner with Engineering Legal Audit and Workplace to protect learner data enable developer velocity and keep a public company’s disclosures and controls buttoned up. ##### **  You will...** - Develop engineers and managers on the team and help them grow in their careers by supporting them in defining strategic goals planning tasks and reviewing code. - Work with other engineers and leaders across the company to identify and catalog risks and ensure issues are addressed in timely manner. - Design and implement systems and processes that improve our security posture. - Partner with external consultants and vendors on integrating security tooling into our products. ##### **  Requirements...** - Track record owning incident response detection response and risk management; ability to translate risk to business tradeoffs. - Prior responsibility for endpoint management MDM identity SSO MFA fleet security SaaS administration and helpdesk - Modern application security leadership and mobile-app security experience - Cloud security (AWS GCP) identity IAM secrets management and IaC controls experience - Familiarity with one or more national and or international regulations such as GDPR ISO and SOX. ##### **  Exceptional candidates will have...** - Extensive experience in fast-growing consumer-facing data-driven startups ideally mobile app based. - A Bachelor’s degree in Computer Science or related technical field. - Experience securing a large infrastructure deployment on AWS or Google Cloud. - Established security champions programs and developer self-service guardrails (policy-as-code paved roads). - Run a successful bug bounty; prior work with HackerOne Bugcrowd * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ##### Below you can find more information about the teams we're hiring for: **AI Platform Team:** The AI Platform team builds the backend infrastructure that powers AI features across Duolingo like [Video Call with Lily](https: www.google.com url?q=https: blog.duolingo.com video-call &sa=D&source=calendar&ust=1751294655500247&usg=AOvVaw0LpXSCjs4nDVGv5gT6wilc). We enable teams to experiment and scale quickly by providing reliable low-latency access to large language models and efficient solutions for self-hosting AI. Our work unlocks new AI capabilities drives innovation and supports AI initiatives company-wide through robust scalable systems. ##### **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain backend services and or infrastructure - Lead individual project priorities milestones and ensure we're always shipping ##### **  You have...** - A Bachelor’s degree in Computer Science or related technical field - Strong competencies in data structures algorithms and software design - Experience programming in Java Python or Kotlin - Solid understanding of one or more database technologies ##### **  Exceptional candidates will have...** - Industry experience building high-traffic APIs using public cloud providers **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ##### Below you can find more information about the teams we're hiring for: **Observability Team:** As a software engineer on the Observability team at Duolingo you'll help build the technology that gives teams across the company critical visibility into how our systems are performing. You'll contribute to developing tools and infrastructure that ensure Duolingo remains reliable scalable and delivers a seamless experience to millions of learners around the world. Your work will directly support engineers across the organization by empowering them with data and insights to monitor debug and improve the performance of our products. **AI Platform Team:** The AI Platform team builds the backend infrastructure that powers AI features across Duolingo like [Video Call with Lily](https: www.google.com url?q=https: blog.duolingo.com video-call &sa=D&source=calendar&ust=1751294655500247&usg=AOvVaw0LpXSCjs4nDVGv5gT6wilc). We enable teams to experiment and scale quickly by providing reliable low-latency access to large language models and efficient solutions for self-hosting AI. Our work unlocks new AI capabilities drives innovation and supports AI initiatives company-wide through robust scalable systems. ##### **  You will...** - Collaborate on software projects with product design and backend aspects - Develop release and maintain backend services and or infrastructure - Lead individual project priorities milestones and ensure we're always shipping ##### **  You have...** - A Bachelor’s degree in Computer Science or related technical field - Strong competencies in data structures algorithms and software design - Experience programming in Java Python or Kotlin - Solid understanding of one or more database technologies ##### **  Exceptional candidates will have...** - Industry experience building high-traffic APIs using public cloud providers * * * Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact your recruiter. Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: drive.google.com file d 1h49gnHpzESPCgAG-3i_uc0RKQuJ-OztB view?usp=sharing). **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $148 800—$274 600 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an Engineering Director at Duolingo you'll have the unique opportunity to shape the future of language learning by leading a talented team of engineers in developing innovative solutions. This role combines strategic thinking technical skill and team leadership requiring you to oversee project management drive technical direction and foster a culture of collaboration and growth **Long-form Learning Area** - You’ll lead engineering for Duolingo’s Long-form Learning Area within our Language Learning Pillar focused on some of our most immersive and impactful language learning experiences that help millions of users achieve their language goals. In this role you’ll oversee the development of new long-form formats and the evolution of flagship products like DuoRadio Stories and the Learning Path. These experiences are designed to help millions of learners build real-world skills in speaking listening reading and writing. **  You will...** - Supervise teams under the Long-form Learning Area to help drive strategies and roadmap - Develop and manage other managers - Balance ambitious 0->1 product innovations thoughtful iteration on existing features and engineering excellence work - Provide guidance on scalable high-quality system design and technical decisions - Collaborate with product managers learning scientists designers and other stakeholders **  You have...** - Experience developing and leading software engineering teams and setting technical direction - Consistent track record managing managers and mentoring technical leaders - Extensive experience in rapid-growth consumer-facing data-driven companies - Demonstrated ability to collaborate effectively in ambiguous fast-paced and unstructured settings - Excellent written and verbal communication skills - Bachelor’s degree in Computer Science or a related technical field **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an Engineering Director at Duolingo you'll have the unique opportunity to shape the future of language learning by leading a talented team of engineers in developing innovative solutions. This role combines strategic thinking technical skill and team leadership requiring you to oversee project management drive technical direction and foster a culture of collaboration and growth **Long-form Learning Area** - You’ll lead engineering for Duolingo’s Long-form Learning Area within our Language Learning Pillar focused on some of our most immersive and impactful language learning experiences that help millions of users achieve their language goals. In this role you’ll oversee the development of new long-form formats and the evolution of flagship products like DuoRadio Stories and the Learning Path. These experiences are designed to help millions of learners build real-world skills in speaking listening reading and writing. **  You will...** - Supervise teams under the Long-form Learning Area to help drive strategies and roadmap - Develop and manage other managers - Balance ambitious 0->1 product innovations thoughtful iteration on existing features and engineering excellence work - Provide guidance on scalable high-quality system design and technical decisions - Collaborate with product managers learning scientists designers and other stakeholders **  You have...** - Experience developing and leading software engineering teams and setting technical direction - Consistent track record managing managers and mentoring technical leaders - Extensive experience in rapid-growth consumer-facing data-driven companies - Demonstrated ability to collaborate effectively in ambiguous fast-paced and unstructured settings - Excellent written and verbal communication skills - Bachelor’s degree in Computer Science or a related technical field **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** Join Duolingo as a Security Engineer and play a pivotal role in safeguarding our systems employees learner data and services across our rapidly-growing language learning platform. With over 650 employees and 21 million daily active users your expertise will be critical in maintaining the highest security standards while continuously enhancing our infrastructure security and ensuring compliance. ##### **  You will...** - Design and develop scalable monitoring and response systems for security alerts to proactively mitigate risks - Continuously evaluate Duolingo's security posture anticipating future threats and devising appropriate countermeasures - Collaborate with development teams to conduct threat modeling identify risks and provide guidance on mitigations - Be a partner to our security champions organizing and growing the program across Duolingo to ensure the efficient distribution of security knowledge - Implement dependency checks for open-source software within applications - Participate in regular product security tabletops with organizational partners - Work on deploying early alerting systems throughout our environment and the responsive automations that trigger when they alert - Develop a continuous verification and testing system for security controls and critical features - Work with our partners in finance to ensure we maintain compliance with our regulatory obligations - Collaborate with IT to improve the security of our offboarding processes by introducing automation and well documented procedures ##### **  You have...** - Experience deploying managing and troubleshooting security scanning tools in the CI CD pipeline - Familiarity with Linux system administration automation and Python programming - A desire to learn more about security and develop the foundational building blocks of the program - Strong collaboration emotional intelligence and communication skills - A Bachelor’s degree in Computer Science or related technical field - Proven experience developing and maintaining microservices - 2+ years working on collaborative development teams - Experience in product application or cloud security - Willingness to work in both backend engineering and operational engineering dependent on the needs of the organization - Ability to relocate to New York NY ##### **  Exceptional candidates will have...** - Familiarity with containerization runtimes (Docker rkt) - Experience securing a large infrastructure on AWS - Threat modeling experience across various architectures and understand how to align those with business goals - Demonstrable experience in designing and managing multi-account cloud environments - Experience communicating sophisticated technical requirements to audiences of variable technical sophistication - Experience working in Terraform developing modules and creating secure by default configurations - Familiarity with security scanning tools such as SemGrep Nuclei Trufflehog and Checkov * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $177 700—$300 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As a Senior Engineering Manager at Duolingo you will have the opportunity to grow as both a software engineer and an engineering leader. In this role you’ll join Duolingo’s rapidly growing engineering organization to lead mission-critical projects from end to end contribute to product strategy and lead a team of world-class engineers. [Listen to why Basim Baig one of our Senior Engineering Managers loves Pittsburgh!](https: www.youtube.com watch?v=X2qbbSgjubE) ##### Below you can find more information about the team we're hiring for: **Growth Area:** - Duolingo's Growth area is focused on making our app more engaging rewarding and fun. This team will build and evolve classic features like the streak and more recent features like in-app events (Friends Quest Daily Quests) that keep learners motivated and coming back. As part of one of the most experiment-driven groups at Duolingo the team plays a key role in driving DAUs through playful habit-forming experiences. **  You will...** - Lead and develop a team of software engineers including task planning technical leadership and career development of your reports. - Own the overall planning execution and success of projects that directly improve our top-line business metrics. - Lead the development of new features and or microservices in an innovative and fast-paced environment. - Collaborate with product teams across the company to find new imaginative opportunities to increase company business metrics like DAUs revenue retention and app performance. - Identify best practices and tools to maximize our ability to build and maintain features and services. **  You have...** - Experience in guiding a software engineering team and setting technical direction. - Experience in leading cross-functional software engineering projects. - Strong written and verbal communication skills. - B.A. B.S. in Computer Science or a related field **  Exceptional candidates will have...** - Experience in fast-growing consumer-facing data-driven startups ideally mobile app-based. - Master's degree or PhD in Computer Science or a related field. * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $144 500—$294 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As a Senior Site Reliability Engineer you will work closely with both product and platform engineering teams to ensure Duolingo’s sophisticated distributed systems and products are built and maintained with extraordinary quality and operated in measurable and scalable ways. ##### **  You will...** - Collaborate with internal teams to identify sources of instability in distributed systems and drive operational excellence - Own core infrastructure (i.e understand diagnose and debug these systems in production) - Provide system design consulting develop software platforms frameworks and conduct launch reviews and root cause analysis - Maintain and document sustainable postmortem incident response practices - Advocate for and implement changes that improve reliability scalability and velocity - Reduce the burden of toil with iterative development of tooling and automation - Collaborate with engineering teams to release new features and become an authority on our services ##### **  You have...** - 3+ years of experience within site reliability engineering DevOps of a product with millions of users - Experience identifying and solving issues in large-scale distributed systems - Experience with Java Kotlin Python or Go - Proficiency in networking protocols such as TCP IP HTTP SSL DNS etc - An understanding of containerization toolsets and container orchestration technologies (Docker Mesos Kubernetes Nomad etc) ##### **  Exceptional candidates will have...** - Experience in improving automation and tooling to reduce service maintenance toil - Proven experience driving improvements to incident response processes - Experience assessing reliability and troubleshooting issues in MySQL and or PostgreSQL databases * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $177 700—$300 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about educating our users experimenting with big ideas making fact-based decisions and finding innovative solutions to complex problems. You’ll have limitless learning opportunities and daily collaborations with world-class minds — while doing work that’s both meaningful and fun. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. Read [our blog](https: blog.duolingo.com ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=generalblog_gh_091224) to learn more. * * * **About the role...** We’re hiring a Vice President of AI to lead our company-wide AI strategy and execution. This is a rare role that combines deep technical vision with operational excellence high organizational visibility and cross-functional leadership. You’ll set the roadmap for how Duolingo applies artificial intelligence across our entire suite of learning experiences bridging applied research engineering and product with purpose and scale. This leader will drive innovation and impact: applying cutting-edge research into magical user experiences scaling personalized learning and championing responsible AI. You’ll oversee our growing team of applied AI researchers engineers and others while partnering closely with senior leaders to shape the future of learning. You will work in service of a mission that reaches millions of learners every day. If you’re excited to lead AI at the company where education meets delight we’d love to meet you. **  You will...** - **Set AI Strategy and Vision -** Develop and evolve Duolingo’s company-wide AI strategy spanning applied research infrastructure personalization and applications of generative AI. - **Drive Real-World Impact -** Lead the development and deployment of AI solutions that directly power features used by millions. - **Connect Applied Research and Product -** Through close collaboration create a strategy that translates applied AI research into production-ready measurable product innovations. - **Build and Lead High-Performing Teams -** Recruit manage and grow a diverse world-class AI org with strong capabilities in applied AI research LLM integration MLOps and experimentation. - **Shape Company Direction -** Act as a trusted thought partner to the CEO CTO CEngO and senior executives providing clear guidance on AI risks opportunities tradeoffs and timelines. - **Champion Responsible and Ethical AI -** Ensure fairness privacy and explainability in all AI-driven features. **  You have...** - 10+ years of experience in AI ML leadership including at the VP level in a fast-scaling technology company. - Demonstrated success building AI products that support high-volume global users in a consumer or edtech context. - Technical depth in one or more of: LLMs natural language processing (NLP) personalization. - Experience managing cross-functional teams (applied research engineering product-facing) and fostering an inclusive mission-driven culture. - Strong communication and influence skills. You are comfortable guiding both technical deep dives and executive decision-making. - Passion for education and a track record of building for impact. - PhD or equivalent experience in Computer Science AI ML NLP or related discipline. * * * Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** As an Engineering Director at Duolingo you'll have the unique opportunity to shape the future of language learning by leading a talented team of engineers in developing innovative solutions. This role combines strategic thinking technical skill and team leadership requiring you to oversee project management drive technical direction and foster a culture of collaboration and growth **Duolingo English Test (DET)** - The Duolingo English Test (DET) is an alternative to traditional high-stakes testing — through a Duolingo-style experience. Students interested in studying abroad can use our platform to certify their English and be accepted by 5 000+ higher education institutions worldwide. We make extensive use of AI and are always developing new security tools and proctoring technologies to enable students to take the test online on-demand anywhere in the world. In this role you will lead the DET engineering organization and work directly with the business unit's executive team to make sure we continue to scale the DET's success **  You will...** - Define strategies and roadmap for your team - Shape key decisions about architecture and implementation of scalable and high quality engineering solutions - Drive the planning execution and success of elegant technical projects - Lead a team of software engineers to deliver new learning features that make a large impact on how well we teach languages **  You have...** - Experience in developing and leading a software engineering team and setting technical direction - Experience leading teams building ML AI systems - Proven track record as an effective manager of managers with experience in mentoring and coaching team members - Extensive experience in fast-growing consumer-facing data-driven companies - Excellent written and verbal communication skills * * * Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact your recruiter. Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: drive.google.com file d 1h49gnHpzESPCgAG-3i_uc0RKQuJ-OztB view?usp=sharing). **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $196 000—$426 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** In this role you’ll lead efforts to incorporate cutting-edge AI to make language lessons more dynamic personalized and effective. You’ll collaborate with cross-functional partners to architect test and deploy AI-driven enhancements that directly impact millions of users. Reporting to the engineering lead (with room for evolution) you’ll help shape the future of AI-powered language learning. We're particularly interested if you've previously built production-level apps enhancing them with advanced AI techniques and if you're skilled in comprehensive system evaluations—using both automated tools and human feedback to ensure top-notch performance. ##### **  You will...** - Revamp the language session generator and integrate AI into the curriculum to foster enhanced learning experiences. - Develop and implement cutting-edge AI features into production-level applications. - Conduct thorough system evaluations leveraging both automated tools and human feedback to guarantee superior product quality and performance. - Optimize AI algorithms to enhance their efficiency and effectiveness - Implement feature engineering to refine algorithm predictions and drive improved performance. ##### **  You have...** - Bachelor's degree in Computer Science Artificial Intelligence or related field - Experience building production-grade apps with LLMs - Portfolio of projects demonstrating integration of AI into learning tools or platforms * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $213 600—$384 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub).... Click to read more.

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission and that’s where you come in! At Duolingo you’ll join a team that cares about finding [innovative solutions to complex technical problems](https: blog.duolingo.com tag engineering ?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224) running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions and educating our users and employees alike. You’ll have limitless learning opportunities mentorship and collaboration with world-class minds and a variety of projects with large scopes — while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. * * * ### **About the role** We are looking for a Head of Security to own the growth of our Security Program as we continue to scale to more courses and regions. This is an opportunity to shape how security integrates with the way we operate as a company and how our product is built. As Duolingo's Head of Security you will lead a high-leverage organization spanning Platform Security Compliance and Corporate IT. You’ll set strategy coach both managers and individual contributors and be responsible for engineering performance and execution. You will also partner with Engineering Legal Audit and Workplace to protect learner data enable developer velocity and keep a public company’s disclosures and controls buttoned up. ##### **  You will...** - Develop engineers and managers on the team and help them grow in their careers by supporting them in defining strategic goals planning tasks and reviewing code. - Work with other engineers and leaders across the company to identify and catalog risks and ensure issues are addressed in timely manner. - Design and implement systems and processes that improve our security posture. - Partner with external consultants and vendors on integrating security tooling into our products. ##### **  Requirements...** - Track record owning incident response detection response and risk management; ability to translate risk to business tradeoffs. - Prior responsibility for endpoint management MDM identity SSO MFA fleet security SaaS administration and helpdesk - Modern application security leadership and mobile-app security experience - Cloud security (AWS GCP) identity IAM secrets management and IaC controls experience - Familiarity with one or more national and or international regulations such as GDPR ISO and SOX. ##### **  Exceptional candidates will have...** - Extensive experience in fast-growing consumer-facing data-driven startups ideally mobile app based. - A Bachelor’s degree in Computer Science or related technical field. - Experience securing a large infrastructure deployment on AWS or Google Cloud. - Established security champions programs and developer self-service guardrails (policy-as-code paved roads). - Run a successful bug bounty; prior work with HackerOne Bugcrowd * * * **We post a multi-level salary range for all of our roles.** _This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process._ _The actual salary within the range is determined by many factors including but not limited to skills experience education and internal equity._ Salary Range: $240 000—$432 000 USD Take a peek at how we care for our employees' holistic well-being with our benefits [here](https: careers.duolingo.com #benefits). We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation please contact [accommodations@duolingo.com](mailto:accommodations@duolingo.com). Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race religion color national origin gender (including pregnancy childbirth or related medical conditions) sexual orientation gender identity gender expression age status as a protected veteran status as an individual with a disability or other applicable legally protected characteristics. By applying for this position your data will be processed as per the [Duolingo Applicant Privacy Notice](https: docs.google.com document d e 2PACX-1vTX9GKeRMOMA9Vtm0vfGibrYPYz8ysl0Dg8KSXgj_PxeT5ChsdnNZZWtpxu4t7xillTPGnngnKCjIbV pub). Sign up for job alerts [here](http: my.greenhouse.io users sign_in?job_board=duolingo).... Click to read more.