Data Scientist

Duolingo - Pittsburgh, PA - Full time

Duolingo - Pittsburgh, PA - Full time

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Play a key role in analyzing data to improve how people learn.As a Data Scientist at Duolingo, you will be a pivotal member of our engineering staff by analyzing data to dissect and improve how people learn using our products. The data scientist will be a meticulous, curious, and analytic individual who has a passion of diving into data, organizing it, and using A/B tests to understand how our users learn.


  • Actively analyze, gain insight from, and understand user data to make queries and reports about learning
  • Receive questions from Duolingo product teams, understand them, and determine the data and analyses needed to answer them
  • Produce strategic insights to help improve the user experience and learning experience
  • Identify and clearly articulate insights drawn from data, present findings and recommendations
  • Help design and develop A/B tests for Duolingo product teams, and obtain necessary data from them
  • Be actively involved in the development of of our analytics tools for A/B testing, segmentation, and funnel analysis
  • Advise teams about data capturing needs
  • Document analysis methodologies, conclusions, and actions taken based on data


  • PhD (or equivalent experience) in a quantitative field such as Computer Science, Mathematics, or Statistics, etc.
  • Expertise in statistical analysis
  • Experience with statistical packages (i.e. R, MATLAB, SPSS, SAS, Stata, etc.)
  • Experience with SQL and working with data warehouses
  • Excellent communication skills
  • Be able to work effectively with people at various levels of engineering within Duolingo

Exceptional candidates will have

  • 3+ years of industry experience
  • Experience with the programming languages Python and/or Java
  • Significant expertise with predictive analytics, time series data, etc.
  • Experience in “big data” systems such as Hadoop, Hive, Redshift, BigQuery

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Experience Level

Mid Level


Duolingo is the world's largest online language learning service. Duolingo is a spinoff from Carnegie Mellon University's School of Computer Science. Duolingo was founded by engineers and is run by engineers.

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