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!

Learn more about our team: Learning R&D Area: As an Android engineer in the Learning R&D Area, you will develop next-generation education technology that changes how people around the world learn on their mobile devices. We’re looking for engineers who bring fresh ideas from all areas of computer science, including natural language processing, machine learning, large-scale system design, and Android mobile app development. The Learning R&D Area works on improving the learning experience of our users with new bets, technologies, and features, that fill the learning gaps in our product. Our goal is to make Duolingo the best way to level up your language skills, regardless of your proficiency level.

You Will...

Collaborate on software projects with product design and backend aspects Develop, release, and maintain native Android application features in Kotlin Mentor and set technical direction for junior engineers on the team

You Have...

A Bachelor’s degree in Computer Science or a related technical field Programming experience in Kotlin on Android The ability to communicate technical issues effectively to technical and non-technical stakeholders Ability to relocate to or work in our New York office.

Exceptional Candidates Will Have...

5 years of programming experience building reactive Android apps Demonstrated self-direction, with a desire both to learn new techniques and mentor others Outstanding leadership and negotiation skills Experience designing clean and maintainable APIs Experience writing unit tests and testable code

We invest in and support our Duos! This role is eligible for a robust compensation package of base salary, equity, and Duolingo’s world-class benefits. The starting base salary range for this role is, $148,800 - $274,600. Actual salary may vary based on level, work experience, performance, and other factors evaluated during the hiring process.

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 your recruiter.

Take a peek at how we care for our employees' holistic well-being with our benefits .

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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