Our mission at Duolingo is to develop the best education in the world and make it universally available. But we’ve got more left to do — and that's where you come in!
Duolingo is the most popular language-learning application in the world, with over 500 million users and over half a billion exercises completed daily. Beyond our core language learning product, we have also entered into English proficiency testing with the Duolingo English Test, and introduced new courses for Music and Math.
We are passionate about educating our users, making fact-based decisions, and finding innovative solutions to complex problems. We offer meaningful work, limitless learning opportunities, and collaboration with world-class minds. Come brighten your life and over half a billion more!
About the role You will...- Contribute to full-stack software projects by developing, testing, and maintaining features and services.
- Develop, release, and maintain services and/or infrastructure
- Lead individual project priorities, deadlines, and deliverables
- Contribute to code reviews and collaborate across teams to ensure quality and scalability
You have...
- Graduating in Fall 2026 or Spring 2027
- Pursuing a B.S. or M.S. degree in Computer Science or related technical field (i.e. math, physics or data science)
- Dedication to our mission of universally available education
- Programming experience in one or more of the following languages: Java, Python, Kotlin or Swift.
- 12 weeks of consecutive availability
- May 26, 2026 - August 21, 2026
- June 22, 2026 - September 18, 2026
- Ability to relocate to Pittsburgh, PA
What you can expect…
- Close support from your mentor and your team
- Working on features and projects that will have real impact for our learners and internal users
- A fun, mission-driven environment, where you’ll have lots of opportunities to grow as an engineer and make meaningful connections with your colleagues
- Past Projects include:
- Developing a GPT-4 chat interface for one of our internal tools to streamline content creation
- Integrating our A/B testing framework with our observability stack to flag experiments that introduce errors
- Spanish audio lessons, to improve listening comprehension
- Crafting new lessons to teach Coordinates in our Math course
- Porting large features to new platforms (iOS, Android, web)
- Dashboards and tooling for site reliability insights
- Crafting new microservices from scratch
♥️ Why you’ll love working here…
- Language learning opportunities
- Catered in-house lunches, breakfast, and dinner options
- Company-wide Hackathon
- PTO and company holidays
- Frequent company-wide dinners, monthly celebrations, social clubs, and so much more!
We invest in and support our Duos!
Take a peek at how we care for our employees' holistic well-being with our benefits here.
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].
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.
By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.
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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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