Data Scientist, Intern (PhD)

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. About the role You will... • Derive insights from data to influence product roadmaps and drive business results • Apply advanced analytical methods, structural approaches, causal inference, and/or machine learning and AI to model user behavior and estimate the impact of potential new feature implementations, and collaborate with product and engineering teams to develop solutions • Evaluate product experiments to create and improve user experiences • Communicate and present findings and recommendations to senior management • Help preserve our culture of fact-based decision making as we scale You have... • Pursuing a PhD degree (in at least the third year of PhD program) in a quantitative field (e.g. Economics, Finance, Statistics, Math, Linguistics, Computer Science, Computational Social Science, ML/AI), ideally planning to graduate in Fall 2027 or Spring/Summer 2028 • Strong understanding of consumer digital products and an interest in applying advanced analytics and economics to business outcomes • Previous experience analyzing large datasets, communicating results to technical and non-technical senior-level audiences, and making actionable recommendations that improve the product or business • Skilled in SQL, R or Python, and/or statistical methods to analyze behavioral data • Enthusiasm for learning and sharing analytical methods to help grow a collaborative Data Science team and data-forward company culture • Able to relocate to Pittsburgh or NYC for the internship Exceptional candidates will have... • Experience with "big data" and cloud computing technologies like BigQuery, Snowflake, and/or dbt • Experience articulating business questions and using available data to find answers that translate into product recommendations • Self-starter, with a desire to both learn new techniques and guide others • Previous experience/internships in applied business settings • Familiarity with AI tools such as Cursor, a knack for prompt engineering, and a desire to continue to innovate and learn in AI • A GPA of 3.5+ • A Duolingo streak Why you’ll love working here… • Language learning opportunities • Catered in-house lunches and breakfast • 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: $63—$65 USD