Android Engineer, Builds Infrastructure

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 aboutthe 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 conta

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.

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