Data Scientist, Intern (PhD)

New York, NY · Pittsburgh · USD 63-65 / month · Posted Oct 15, 2026

At a glance

The Data Scientist Intern (PhD) will join Duolingo to derive insights from data that influence product roadmaps and drive business results.
The role involves applying advanced analytical methods, causal inference, and machine learning to model user behavior and evaluate product experiments.

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
Estimate the impact of potential new feature implementations
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 a culture of fact-based decision making

Pursuing a PhD degree (at least the third year) in a quantitative field such as Economics, Finance, Statistics, Math, Linguistics, Computer Science, or Computational Social Science
Planning to graduate in Fall 2027 or Spring/Summer 2028
Strong understanding of consumer digital products
Previous experience analyzing large datasets and communicating results to senior-level audiences
Skilled in SQL, R, or Python
Able to relocate to Pittsburgh or NYC for the internship

Experience with big data and cloud computing technologies like BigQuery, Snowflake, and/or dbt
Experience articulating business questions and using data to find answers that translate into product recommendations
Self-starter with a desire to learn new techniques and guide others
Previous experience/internships in applied business settings
Familiarity with AI tools such as Cursor
Knack for prompt engineering
GPA of 3.5+
A Duolingo streak