... Click to read more.

Located in the USA (lower 48 timezones).Worked with complex architectures that support multiple APIs (e.g. REST GQL WebSockets) as well as async task and event processing frameworks.Medical Dental Vision with HSA option (US residents)401k matching at 6% (US residents)Dependent care FSA (US residents) ... Click to read more.

You’ll design and build the core services behind intelligent workflows (e.g. ticket categorization document indexing retrieval search prompt orchestration) and help turn prototypes into production systemsStrong knowledge of relational databases (PostgreSQL) data modelling indexing caching and performance tuning (e.g. OpenAI Anthropic) into production softwareExperience deploying or self-hosting open-source LLMs (e.g. Mistral LLaMA) using modern inference frameworksFull licences to your favourite coding agent tool (Cursor Copilot etc) ... Click to read more.

: We use Netflix’s “Let’s make the company we always dreamed of.” Our values our mission and how we interact with one another are all part of our corporate culture. The team weeks (twice per year) are a key component of that culture. Everyone from our most recent hire to the CEO comes together for a week of collaboration. We work and learn together allow everyone’s voice to be heard and have a lot of fun in the process! is very important to us. "40 hours of passion" perfectly describes it. We are passionate about our work and love our job. But it's just as important to us to have a balance in our free time. No overtime is forfeited and thanks to flexible working hours (flexitime) you can organize your day according to your needs.feel comfortable designing optimizing and working with databases (PostgreSQL)come with good engineering best practices and knowledge about DevOps (AWS Docker Kubernetes) and automated testingbe able to think and communicate clearly in English (C1 equivalent or higher) ... Click to read more.

Build product features from scratch (0-to-1 development) Take full ownership of features from conception to deployment and maintenance. We follow Shape up methodology let us know in your CV if you have experience with this or not :)Background job processing (Sidekiq)Caching solutions (Redis)Relational databases (MySQL and or PostgreSQL)WebSockets integration (ActionCable or AnyCable)Search Engines (Elasticsearch)Payment Gateway (Cardknox Sola)Testing frameworks (RSpec Minitest)CI CD workflows (Docker)Cloud platforms (AWS Heroku)Experience with search engines (Elasticsearch)Knowledge of containerization technologies (Docker Kubernetes)Experience with deployment tools (Capistrano or Kamal)Basic DevOps knowledge (Heroku and or AWS) ... 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.

## **About Us** Our app’s frontend is a single-page TypeScript web app mostly written in React. Our mobile app is built using React Native. Our UI updates in near real-time and takes advantage of fun technologies like Websockets WebRTC and GraphQL Subscriptions. Our backend [tech stack](https: stackshare.io close-crm close) consists of Python Flask MongoDB Postgres Elasticsearch and Redis and communicates with clients via our REST API & GraphQL endpoints. We run our services in Docker on AWS. We care about performance maintainability and testability of our code. We test with Vitest React Testing Library Playwright and Chromatic (VRT). Writing tests is embedded into our engineering culture. We also house lists of manual test steps to follow for testing critical features like calling and composing emails. Our focus is on testing actual user behaviour leveraging the Testing Library approach. We sweat the UI UX details and work collaboratively within cross-functional product development teams. We think about testing in the technical specification phase and we continuously spend time assuring we’re shipping a high-quality product. We love open sourcing our code and ideas on [our GitHub](https: github.com closeio) and on [The Making of Close](https: making.close.com ) our behind-the-scenes Product & Engineering blog. Check out our projects like [TaskTiger](https: github.com closeio tasktiger) and [use-infinite-scroll](https: making.close.com posts introducting-use-infinite-scroll-react-hook) or insights from our day-to-day work on such as [Rendering untrusted HTML email safely](https: making.close.com posts rendering-untrusted-html-email-safely) [How We Improved Reliability Of Our WebSocket Connections](https: making.close.com posts reliable-websockets ) and [Cutting our Lead page LCP by half](https: making.close.com posts cutting-our-lead-page-lcp-by-half). ## **About the Role** As a Senior QA Engineer at Close you would be closely working with three of our six cross-functional product development teams. These include the _CRM Admin & Onboarding Conversations Messaging & Scheduling Automations & Integrations_ and _Data Insights_ teams\*.\* You will be working with another QA engineer as well as frontend backend engineers product managers designers and other teams here at Close. - You’ll report to our Director of Engineering (Frontend). - Help us improve the quality of what we’re shipping reducing amount of bugs regressions. - Help us test features as they are being built reviewed and keep an eye on recently shipped code for potential issues. - Primarily you will focus on testing QA of user-facing behavior and creating high quality issues (bug reports) based on testing our in-product UI across web desktop and mobile. - Additionally you will test against our API and consider ways that our customers may hit issues in their integrations or Zapier. - Help us improve how we’re doing automated testing (unit E2E etc.). - Help Dev teams find ways to improve their testing strategies. ### **Come help us with projects like...** - Modern Rich Text Editor with collaboration features - Workflow Automation - Web-based calling - Web Forms - AI Notetaker - Responsive mobile web & native mobile app ## **About You** We're looking for an experienced individual to join the team as our second QA Engineer. You’ll have a solid understanding of web technologies and real world user behavior and wants to help test QA and launch major user-facing features. You'd enjoy an opportunity to lead the way on the QA front - helping us further improve best practices for testing QA and the quality of our product. You’re comfortable working in a fast-paced environment with a small and talented team. At Close you're supported in your efforts to grow professionally. You are able to manage your time well communicate effectively and collaborate in a fully distributed team. - Senior 1 & 2 level candidates should have 4+ years of experience with testing QA of user-facing behavior. - Staff level candidates should have 8+ years of experience. - Mid-level candidates should have ~3 years of similar experience and be eager to level up with the right opportunity. - You have a brain for breaking things. You are detail-oriented and thorough when writing down test plans and when opening high-quality bug reports. - You deeply care about the quality of a product — not just defects but overall user experience. - You are located in the USA (lower 48 timezones). ### **Bonus points if you have...** - Experience in contributing to tests in JavaScript via React Testing Library Cypress Playwright - Experience testing GraphQL and Websockets endpoints - Worked in B2B SaaS specifically on Sales software ## **Benefits** - Competitive compensation including an organization-wide goal-based bonus - Paid Time Off: 5 Weeks PTO upon joining + Winter Holiday Break. Each year with the company you’ll receive 2 additional PTO days - 80% Work Option: Work with your manager to choose between working 5 day weeks (standard full-time) or 4 day weeks @ 80% pay - Paid Parental Leave for primary and secondary caregivers - Sabbatical: After 5 years with the team you’re eligible for a 1 month paid sabbatical - Healthcare (US residents): Medical Dental and Vision with HSA and FSA options - (US residents) Dependent care FSA - (US residents) 401(k): Up to 6% contribution match 100% vested ## Our Values Build a house you want to live in - Examine long-term thinking and action No BS - Practice transparency and honesty especially when it’s hard Invest in each other - Build successful relationships with your coworkers and customers Discipline equals freedom - Keep your word to yourself and others Strive for greatness - Constantly challenge yourself and others ## Learn More Listen to our CEO and Founder Steli Efti tell the story of Close’s journey in the [$0-30m Blueprint](https: www.close.com blueprint). Watch [our culture video](https: www.youtube.com watch?v=maXKi1GN2MI) from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection foster cross-functional collaboration and have fun. In 2025 we’re headed to Paris France. Explore our product. Check out a [video demo](https: www.close.com demo) or try [an interactive demo](https: www.close.com demo-site)! ## Our Hiring Process We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start so please answer each question thoughtfully. We see this as an opportunity to get to know you beyond your resume. While we are excited by all the opportunities that generative AI has unlocked we request that you refrain from relying exclusively on AI tools when completing an application unless explicitly stated. Every application is read closely by humans and any obviously AI generated applications will be disregarded. Regardless of fit you can expect to hear back from our team with an update on the status of your candidacy. If you progress to the interview process you’ll receive a full outline of the role-specific interview process in your first touchpoint with us. We do our best to make the hiring process clear and human.... Click to read more.

: Experiencia en la administración de sistemas operativos (Windows Linux Unix) y en la gestión de servidores.: Experiencia en soluciones de almacenamiento como SAN NAS y tecnologías de almacenamiento en la nube (Amazon S3 Azure Blob Storage).: Conocimientos en herramientas de extracción transformación y carga (ETL) como Talend Informatica y Apache Nifi.: Experiencia en la administración de bases de datos SQL (MySQL PostgreSQL Oracle) y NoSQL (MongoDB Cassandra).: Conocimientos en la implementación y gestión de almacenes de datos (Data Warehouses) y soluciones de BI (Business Intelligence).... Click to read more.

- work anywhere you want and in any timezone on earth (or outside earth whatever).Hear from our co-founder Michelle Lee on what it's like to work asynchronously (click here)while recording a loom (or other screen recording) video.You're an excellent engineer (you write high quality code you write great tests you ship quickly)Completely flexible work schedule - work literally anytime (and anywhere) you want!Benefits appropriate to your location (health dental vision in the USA) ... Click to read more.

Ten company-wide Wellbeing Days per year for all employees (once a month except in July and August)You have some experience using Javascript framework(s) understand the value of them but also know when plain Javascript is enough.You have some experience using Javascript framework(s)Your work hours have some overlap with EU business hours (we require your local timezone to be within CET + - 3h) ... 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.

Sticker Mule the Internet's favorite custom printer is building the Internet's best commerce platform. We are privately-owned which means no meddlesome investors with 9-figures in annual revenue and great profitability. Our commerce platform (Stores)Excellent communication skills (English) (our giveaway platform)   (our shipping platform Notify (our forthcoming email sms marketing platform) and more coming soon. ... Click to read more.