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 world's most popular learning app. Beyond our core learning product, we also offer English proficiency testing with the Duolingo English Test, and are bringing new subjects into the Duolingo app, where people can develop their Math and Music skills.
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...
As an engineer on the Client Builds and Infrastructure team you’ll be responsible for evaluating and setting the direction for our Android builds. This includes centralizing build logic, working on modularization strategies, and optimizing build times across 50+ Android developers.
Read about the technical problems our Engineers work on.
You Will...
- Collaborate with our CI/CD team to proactively maintain and improve test, build, and release pipelines
- Provide input on core app architectural decisions and drive implementation
- Foster a culture of engineering excellence and mentor engineers of all experience levels
- Create tools and libraries that provide a foundation for the Duolingo Learning Android app
- Design, develop, and maintain automated testing frameworks and scripts
- Stay up-to-date on industry trends and emerging technologies, to continually enhance testing strategies and tools
You Have...
- 6+ years of Android software engineering experience, and 1-2+ years developing scalable production software and an excellent command of engineering fundamentals
- Experience supporting either Gradle-based projects or large Android builds
- Significant experience with build automation
- Proven ability to drive large-scale technical initiatives across multiple teams
- Proficiency in Android development using standard tools and frameworks
Preferred Candidates Will Have...
- Expertise in Kotlin
- Knowledge of Android SDK performance tools and optimization techniques
- Experience with Gradle principles e.g., caching and task avoidance
- Deep understanding of unit testing and test automation
We post a multi-level salary range for all of our roles.
This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process. The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.
Salary Range:
$174,250—$354,000 USD
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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