5+ years of software development experience. Experience with large Full Life Cycle (FLC) project implementations with hands on delivery.Experience with design development and deployment of SOA based architecture for a large organization leveraging multiple COTS Business applications is preferred Experience with Tomcat XML JMS XSLT WS-* SOA Integration and API Management technologies and standards Experience with using a JAVA IDE (Eclipse Intelli J Netbeans)Designed and developed micro-service solutions Service Oriented Architecture (SOA) concepts including REST-ful and SOAP-based services Designed and developed enterprise services using RAML and REST based APIs Experienced in both Agile and waterfall methodologiesShould have experience in Functional Architecture Design and Architecture Knowledge Negotiating Financial Analysis and Continuous (Service) Improvement.... 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. * * * ##### 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. 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.

In 2022 we raised a $20M Series A backed by Felicis Ventures (investors in Twitch Shopify Opendoor and many others) and Battery Ventures. This year we’re laser-focused on driving customer growth. If you’re excited about the opportunity to wear multiple hats and continuously learn and experiment now’s the time to join the Proton team.Proton collaborates with Oyster HR to hire international employees as full time (long term) contractors within our company.  - we want to pay you well (and equitably!) and make you feel like an owner.   ... 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.

**Worker Type** Regular **Job Description** **Summary** As a **Sr. Software Engineer (Applications)** one works with and is mentored by a talented group of engineers in a fast moving collaborative Agile development environment. In this role one plans designs develops and tests software systems or applications for software enhancements and new products including cloud-based or internet-related tools. **Position Responsibilities** - Works within a defined software life cycle development process - Understands the requirements and process. Participates in and leads software design reviews - Creates software design documentation according to software process requirements - Implements coding according to coding standard. Writes a unique test and validate software according to the process. Contributes to process improvement efforts - Delivers work on time according to agreed completion dates and project schedule & budget - Supports and derives algorithm design from detailed software requirements - Works closely with multiple teams of software developers reusing developed software to support different programs - Operates in a continuous learning environment and provides guidance and mentoring to less experienced engineers - Demonstrates methods and procedures on new assignments and may coordinate activities of other personnel (Team Lead) - Other duties as assigned **Basic Qualifications (Required Skills & Experience)** - Bachelor's degree in Computer Engineering Computer Science Electrical Engineering Math or Physics is required or equivalent combination of education training and experience - Minimum 8 - 12 years of relevant experience in Windows or Linux application software development. Object Oriented Design experience is required - Expertise in one of the following: C# .Net Java C++ and or Web UI - Experienced writing unit tests and debugging code - Experienced with formal and structured lifecycle development process - Experienced with Agile Software Development Process Management - Demonstrated mathematical and analytical skills are required - Demonstrated familiarity with source code configuration management tools such as SVN and Git as well as familiarity with IDEs and debuggers - Willingness to travel locally (Occasionally) **Other Qualifications & Desired Competencies** - Advanced degree is preferred - Experience with Android iOS or React Redux web development is preferred - Experience with FitNesse test framework is preferred as is experience with UAS drones or robotics - Demonstrates understanding of object-oriented design data structures database and operating systems. A basic knowledge of networking is preferred - Demonstrates good judgment in selecting methods and techniques for obtaining solutions - Demonstrates effective listening questioning clarifying and summarizing skills to effectively communicate in one-on-one and small group settings - Demonstrates understanding of system design that one is working on and understands the role that assigned tasks play in the system - Able to excel in a fast-paced deadline-driven environment where small teams share a broad variety of duties - Displays strong initiative and drive to accomplish goals and meet company objectives - Takes ownership and responsibility for current and past work products - Is committed to learning from mistakes and driven to improve and enhance performance of oneself others and the company - Has effective problem-solving analytical interpersonal and communication skills - Focuses on teamwork collaboration and puts the success of the team above one's own interests **Physical Demands** - Ability to work in an office environment (Constant) - Required to stand and sit for long periods; talk hear and use hands and fingers to operate a computer and telephone keyboard (Frequent) The salary range for this role is: $136 807 - $194 040 AeroVironment considers several factors when extending an offer including but not limited to the location the role and associated responsibilities a candidate’s work experience education training and key skills. **ITAR Requirement:** _T_ _his position requires access to information that is subject to compliance with the International Traffic Arms Regulations (“ITAR”) and or the Export Administration Regulations (“EAR”). In order to comply with the requirements of the ITAR and or the EAR applicants must qualify as a U.S. person under the ITAR and the EAR or a person to be approved for an export license by the governing agency whose technology comes under its jurisdiction. Please understand that any job offer that requires approval of an export license will be conditional on AeroVironment’s determination that it will be able to obtain an export license in a time frame consistent with AeroVironment’s business requirements. A “U.S. person” according to the ITAR definition is a U.S. citizen U.S. lawful permanent resident (green card holder) or protected individual such as a refugee or asylee. See 22 CFR § 120.15. Some positions will require current U.S. Citizenship due to contract requirements._ **Benefits**:  AV offers an excellent benefits package including medical dental vision 401K with company matching a 9 80 work schedule and a paid holiday shutdown.  For more information about our company benefit offerings please visit:  [http: www.avinc.com myavbenefits](http: www.avinc.com myavbenefits). We also encourage you to review our company website at [http: www.avinc.com](http: www.avinc.com) to learn more about us. Principals only need apply.  NO agencies please. **Who We Are** Based in California AeroVironment (AVAV) is a global leader in unmanned aircraft systems (UAS) and tactical missile systems. Founded in 1971 by celebrated physicist and engineer Dr. Paul MacCready we’ve been at the leading edge of technical innovation for more than 45 years. Be a part of the team that developed the world’s most widely used military drones and created the first submarine-launched reconnaissance drone and has seven innovative vehicles that are part of the Smithsonian Institution’s permanent collection in Washington DC. Join us today in developing the next generation of small UAS and tactical missile systems that will deliver more actionable intelligence to our customers so they can proceed with certainty – and succeed. **What We Do** Building on a history of technological innovation AeroVironment designs develops produces and supports an advanced portfolio of unmanned aircraft systems (UAS) and tactical missile systems.  Agencies of the U.S. Department of Defense and allied military services use the company’s hand-launched UAS to provide situational awareness to tactical operating units through real-time airborne reconnaissance surveillance and target acquisition. _We are proud to be an EEO AA Equal Opportunity Employer including disability veterans. AeroVironment Inc. is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Qualified applicants will receive fair and impartial consideration without regard to race sex color religion national origin age disability protected veteran status genetic data  sexual orientation gender identity or other legally protected status._ **ITAR** U.S. Citizenship required. Must be willing to work on government contracts and have the ability to obtain a security clearance.... 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: **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 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.