Data Scientist, Intern (PhD)

Posted 3 Days Ago
Be an Early Applicant
2 Locations
Hybrid
63-65 Annually
Internship
Edtech • Machine Learning • Mobile • Other • Software
We’re here to develop the best education in the world and make it universally available.
The Role
Analyze behavioral data, apply advanced analytics, causal inference, machine learning, and AI to evaluate product experiments and estimate feature impact. The intern will derive insights for product roadmaps, collaborate with product and engineering teams, communicate recommendations to senior leaders, and support a fact-based data science culture.
Summary Generated by Built In

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

Benefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.
Job Alerts: Sign up for job alerts here.
Accommodations: We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact [email protected].
Equal Employment Opportunity: Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.
Fraud Warning: Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we’ll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.
By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.

Skills Required

  • Pursuing a PhD in a quantitative field, such as Economics, Finance, Statistics, Mathematics, Linguistics, Computer Science, Computational Social Science, or ML/AI
  • At least in the third year of a PhD program
  • Strong understanding of consumer digital products and interest in applying advanced analytics and economics to business outcomes
  • Experience analyzing large datasets
  • Experience communicating results to technical and non-technical senior-level audiences
  • Experience making actionable recommendations that improve a product or business
  • Proficiency in SQL, R, Python, and/or statistical methods for behavioral data analysis
  • Ability to relocate to Pittsburgh or New York City for the internship
  • Experience with big data and cloud technologies such as BigQuery, Snowflake, or dbt
  • Experience translating business questions and data analysis into product recommendations
  • Self-starter who wants to learn new techniques and guide others
  • Previous applied business experience or internships
  • Familiarity with AI tools such as Cursor and prompt engineering
  • GPA of 3.5 or higher
  • Duolingo learning streak

Duolingo Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Duolingo and has not been reviewed or approved by Duolingo.

  • Fair & Transparent Compensation — Pay is considered competitive for core engineering and product roles, with required jurisdictions showing posted ranges and immigration filings implying a strong base-salary floor. Public compensation snapshots indicate senior packages can scale higher, supporting a clear, market-aligned structure.
  • Healthcare Strength — Comprehensive medical, dental, and vision coverage is paired with mental-health resources and fertility support as core offerings. Coverage for dependents and strong wellness benefits are consistently highlighted.
  • Leave & Time Off Breadth — About 20 days of PTO plus a two‑week company winter break and paid holidays provide substantial time away. A formal sabbatical at 10 years further expands long‑term recharge options.

Duolingo Insights

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The Company
HQ: Pittsburgh, PA
670 Employees
Year Founded: 2011

What We Do

Duolingo is a language-learning education platform that offers 98 total courses across nearly 40 distinct languages. Duolingo is the world’s most popular way to learn a language. Our mission is to develop the best education in the world and make it universally available. Some of our products include: 1. Duolingo: The free, fun, and effective way to learn a language! 2. DET (Duolingo English Test): A modern language proficiency tool designed for today's international students and institutions. It offers an English proficiency score, video interview, and writing sample in an accessible, efficient, and secure testing experience. 3. Duolingo Math: An app that can make math be fun. For everyone. Students can focus on elementary math, which covers classroom topics, or adults can focus on brain training, which strengthens mental math skills and covers more advanced topics. 4. Duolingo ABC: An educational learning app that offers immersive lessons to teach preschool to second grade kids reading fundamentals. Founded in 2011 by Luis von Ahn and Severin Hacker, Duolingo is the most downloaded education app in the history of the App Store and in 2019 became the top-grossing education app worldwide. The app has been awarded Apple's iPhone App of the Year and Android's Best of the Best. Learning a new language used to be expensive; we believe it should be free. Over 1.2 billion people are learning a second language and most of them are learning English to improve their lives. Learning a new language is hard; we believe it can be fun. We use bite-sized lessons that feel like playing a game to keep our learners motivated. With over 500 million learners we have unprecedented data insights on how people learn. Our teams of language learning scientists, machine learning engineers, and AI experts use this data to constantly improve our effectiveness. We’re building a future in which the highest-quality education is accessible to all. Duolingo has been named: 2022 Fast Company’s Best Workplaces for Innovators 2022 Fast Company 10 Most Innovative Education Company 2021 Forbes Best Startup Employers 2020, 2018, 2017, 2013 Most Innovative Company by Fast Company 2020 Best Machine Learning Startups for by Glassdoor 2018 Inc. Best Places to Work 2018 Entrepreneur Top Company Culture List University Program Awards: 2022 Handshake Early Talent Award 2022 Untapped Top Internship Programs 2022 OneReq Internship Program Trailblazer Award

Why Work With Us

Our global team works together to make language learning fun, free, and effective for anyone who wants to learn, wherever they are. Best of all, you get to work alongside Duo (literally)!

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