AI Research Intern (PhD) in NY or Pittsburgh

Duolingo's mission is to develop the best education in the world and make it universally available. It is a big mission, and that is where you come in.

At Duolingo, you will join a team that cares about educating users, experimenting with big ideas, making fact-based decisions, and finding innovative solutions to complex problems. You will have plenty of learning opportunities and daily collaboration with world-class minds, while doing work that is both meaningful and fun.

Help us develop education for our half a billion learners around the world.

Department: University

You Will...

• Apply AI methods to massive real-world datasets
• Prototype new models, evaluate them 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 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 a related field
• Graduation expected by August 2028
• Contributions to research communities, including publishing papers at conferences such as ACL, CVPR, EDM, ICML, NeurIPS, and others
• A portfolio of impactful work, such as publications, open-source projects, or AI internships
• Experience implementing AI systems in Python, Java, Scala, or C/C++ (not just R or MATLAB)
• A creative, interdisciplinary, and entrepreneurial approach to R&D
• Strong debugging and critical thinking skills
• 12 consecutive weeks of availability: May 24, 2027 to August 13, 2027, or June 14, 2027 to September 3, 2027
• Ability to relocate to Pittsburgh, PA or New York, NY

What You Can Expect...

• Language learning opportunities
• Catered in-house lunches, plus breakfast and dinner options
• Company-wide hackathon
• PTO and company holidays
• Frequent company-wide dinners, monthly celebrations, social clubs, and more