QA Specialist II

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 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

Duolingo is the most popular language-learning application, with over 500 million learners and millions of exercises completed every day. As part of our growing engineering organization, you’ll work embedded in product teams to uphold a fun, effective, and reliable learning experience. You will partner closely with product managers, engineers, and designers to deeply understand our features, uncover issues early, and champion quality on behalf of our learners.

:brain: You will...

• Own the end-to-end verification of new features from scoping to release, including regression, exploratory, and acceptance testing across iOS, Android, and Web


• Perform sanity checks against Duolingo release and branch builds, and validate fixes before and after deployment


• Develop clear, reproducible bug reports and partner with engineers to isolate root causes and ensure timely resolution


• Maintain deep product expertise and serve as a go-to resource for teammates seeking clarity on expected behavior, edge cases, or learner experience


• Proactively identify quality risks, propose mitigation strategies, and influence product decisions that improve stability and usability


• Tenaciously prioritize test efforts across multiple teams, ensuring we focus on the areas that matter most for learner impact


• Advocate for Duolingo learners by evaluating features not only for correctness but for clarity, delight, and overall usability


• Contribute to evolving QA processes, documentation, and standards that help engineering teams move faster with confidence


• Collaborate closely within cross-functional teams, communicating clearly and managing expectations in a fast-paced environment

:check: You have...

• BA/BS degree in a related field or equivalent work experience


• 2+ years of experience in software quality assurance or a closely related field


• Ability to relocate to New York, NY


• Excellent written and verbal communication skills, with the ability to articulate issues and risks to technical and non-technical partners


• Knowledge and hands-on experience in manual testing, including regression, exploratory, and functional testing for mobile and web applications


• Experience and expertise in QA processes and UI/UX testing (web and mobile)


• Strong organizational and problem-solving skills, with attention to detail and consistency


• Ability to work both independently and as part of a team while handling multiple priorities


• Basic familiarity with the Duolingo app and a passion for delivering a delightful learner experience

:star: Exceptional candidates will have...

• 3+ years of QA experience working on commercial software products


• Familiarity with basic automation tools, lightweight scripting, or AI-assisted testing tools, even if not a primary responsibility


• Experience working with distributed teams or supporting multiple product surfaces simultaneously


• Demonstrated ability to manage small QA projects, coordinate test plans, or influence workflow improvements and cross-team collaboration


• Experience working in gaming, interactive media, or similar domains where polish, responsiveness, and user delight are critical


• Knowledge of accessibility guidelines for mobile and web experiences