Duolingo

Senior Data Scientist, Growth Forecasting

Senior data scientist building and mentoring the methods behind quarterly user-growth forecasts that leadership relies on for business planning.

The role

This role sits inside the Growth Data Science group and centers on the forecasts that feed quarterly business decisions. The person works across product, finance, and strategy to keep those forecasts accurate and dependable, while also improving the underlying modeling approach. Mentoring junior analysts is part of the job.

What you would do

  • Refine and validate forecasting methods so they fit the business priorities
  • Build repeatable processes that keep quarterly forecasting dependable
  • Shape forecasts around product roadmap, major initiatives, and shifting strategy
  • Turn detailed analytical results into clear summaries for executives and partners
  • Guide and coach junior data scientists on the forecasting workstream
  • Convert product and business changes into concrete modeling inputs
  • Collaborate with peers to continuously improve forecasting capability

What they asked for

  • Hands-on experience producing forecasts on noisy, real-world data with uncertain assumptions
  • Graduate training in data science, statistics, economics, or another quantitative discipline, or comparable proven analytical skill
  • Track record of turning technical output into practical business guidance
  • Proficiency in SQL and Python, plus AI-assisted analysis tools and analytics engineering stacks
  • Strong written and spoken communication for varied audiences

Nice to have

  • Background at a fast-scaling consumer technology company, ideally with user-growth forecasting
  • Experience at a publicly traded company handling investor-facing forecasts and reporting
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