ApplySarthiSenior Engineering Manager, Data Platform
Duolingo
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Preparing for this interview
Interviews for engineering roles keep coming back to AWS, Python, Observability, System design. Practise those questions before you sit with Duolingo.
Questions you are likely to be asked
- Why do you want to join Duolingo?
- Walk me through a system you built. How was it designed, and what would you change now?
- Tell me about a hard bug you tracked down. How did you find the cause?
- How do you decide what to test, and what does good code review look like to you?
- Describe a time a deadline forced a trade-off in quality. What did you choose and why?
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Practise the Senior Engineering Manager, Data Platform at Duolingo interview free →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...
As the manager and team lead of the Experiments Team, you will oversee the A/B testing system that powers Duolingo's product development lifecycle. Experiments play an essential role at Duolingo, with almost all product changes going through some form of test. You will manage our in-house Experiment Platform that is responsible for defining experiments, executing them in the app, and measuring their outcome. While the role is platform-focused, you will remain highly connected to the product in all parts of Duolingo, shaping how we use A/B testing to build the best possible experience for our learners.
🧠 You will...
- Expand the capabilities on our Experiment Platform to support more sophisticated types of A/B tests and statistical methods.
- Empower teams to confidently evaluate their key metrics and easily gate access to new functionality.
- Help shape the future of the accelerated feature shipping at Duolingo by enabling improved experiment automation and backend-based control of the learner experience.
- Scale the Experiment Platform to be able to handle dramatically increased experiment velocity in a statistically sound and cost-efficient manner.
- Partner with product teams to devise unique approaches to measuring complex product scenarios and to advise on experiment strategy.
- Shape the future of the Duolingo product lifecycle through A/B testing.
✅ You have...
- Experience leading, managing, and building a team of software engineers, with demonstrated ability to hire, develop, and retain talent.
- A track record of building scalable infrastructure and working with large datasets.
- Experience with A/B testing, either via supporting experiment infrastructure or using A/B tests in product development.
- Strong cross‑functional leadership and communication skills, especially between product and platform teams.
- The ability to work from or relocate to Pittsburgh, PA or New York, NY.
⭐ Exceptional candidates will have...
- Prior experience building an experimentation platform or A/B testing-related tooling.
- Experience operating in a high-speed product development environment.
- Comfort with the statistical methods behind hypothesis testing.
The offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation. We encourage you to talk with your recruiter for more information related to compensation for this role!
Benefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.
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Accommodations: 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.
Equal Employment Opportunity: 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.
Fraud Warning: Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we’ll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.
By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.
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Listed on greenhouse · posted 2026-10-19. ApplySarthi collects openings and links to application pages; the role is advertised by Duolingo, not by us.