Duolingo
AI Research Intern (PhD)
New York, NY; Pittsburgh, PA · On-site · Posted 2026-11-06
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 educating our users, experimenting with big ideas, making fact-based decisions, and finding innovative solutions to complex problems. You’ll have limitless learning opportunities and daily collaborations with world-class minds — while doing work that’s both meaningful and fun.
Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.
Read our blog to learn more.
🧠 You Will...
• Apply AI methods to massive real-world datasets • Prototype new models, evaluate with small scale experiments, and/or productionize solutions at scale • Work with a cross-functional team of world class researchers, engineers, and others to build new product features and/or publish state-of-the-art findings • Solve our most ambitious problems with the right tool for the task • Collaborate cross-functionally to bring your ideas to life in the product • Identify problems, prototype solutions, evaluate their return on investment, and then implement the best solution at scale to improve the lives of our millions of learners each day
✅ You Have...
• Pursuing a PhD in artificial intelligence, machine learning, natural language processing, or related field • Graduation expected by August 2028 • Contributions to research communities and efforts, including publishing papers at conferences such as ACL, CVPR, EDM, ICML, NeurIPS, etc. • A portfolio of impactful work, in the form of (for example) publications, open-source projects, or AI internships • Experience implementing AI systems in Python, Java, Scala, or C/C++ (i.e., not just R or MATLAB) • A creative, interdisciplinary, and entrepreneurial approach to R&D • Strong debugging and critical thinking skills • 12 week consecutive availability • May 24, 2027 - August 13, 2027 • June 14, 2027 - September 3, 2027 • Ability to relocate to Pittsburgh, PA or New York, NY
⭐ What you can expect...
• Language learning opportunities • Catered in-house lunches, and breakfast and dinner options • Company-wide Hackathon • PTO and company holidays • Frequent company-wide dinners, monthly celebrations, social clubs, and so much more!
Connect with your recruiter on the benefits for interns at Duolingo!
Hourly Range for this internship is: $67 — $69 USD
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