# Staff AI Research Engineer at Duolingo

- Company: Duolingo
- Status: Open
- Workplace: On-site
- Location: New York, NY; Pittsburgh, PA
- Level: Staff
- Discipline: AI & ML
- Employment: Full-time
- Salary: $221K–331K
- Posted: 2026-11-05
- Apply: https://careers.duolingo.com/jobs/8932683002?gh_jid=8932683002

## Description

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 
 We are looking for an experienced AI Research Engineer to join our Speech team. The ideal candidate will have a proven track record as an AI research engineer, with experience across various machine learning techniques, and a particular focus on speech modeling: ASR, TTS, speech-to-speech models, audio tokenization, and more. They will have experience at all levels of the ML stack, including feature engineering, developing training data, fine-tuning, reinforcement learning, benchmarks and evaluations, deployment, and monitoring. On the Speech team, we’re training custom models to understand the speech of non-native learners, working closely to support product teams working on features like Video Call and the learning path.
 You will... 
• Join a full-stack team of frontend, backend, and other AI Research engineers, fostering a collaborative

More Duolingo roles: https://deviantjobs.com/companies/duolingo