Software Engineer II, Android

Duolingo, Inc; Pittsburgh (Allegheny County); On-site; USD 153,000 - 207,000; Full time

Job summary

Duolingo, Inc. is hiring for the Subscriber Conversion Team to build and maintain Android features in Kotlin, collaborating with product design and backend engineers. You will contribute to a fast-paced, experimental environment with frequent A/B testing and scalable APIs.

You will mentor junior engineers and communicate technical issues clearly to both technical and non‑technical stakeholders, while delivering high‑quality code.

Qualifications

• Bachelor’s degree in Computer Science or a related technical field.
• Programming experience in Kotlin on Android.
• Ability to communicate technical issues effectively to technical and non‑technical stakeholders.
• Strong programming experience building reactive Android apps.
• Demonstrated self‑direction with a desire to learn and mentor others.
• Experience designing clean and maintainable APIs.
• Experience writing unit tests and testable code.

Responsibilities

• 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.

Skills

Kotlin

Android

Communication

Education

Bachelor's degree in Computer Science

Job description

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 finding innovative solutions to complex technical problems , running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful.

Join our life‑changing mission to develop education for our half a billion (and growing!) learners around the world.

About the Role

Subscriber Conversion Team

The Subscriber Conversion team owns the surfaces that turn learners into subscribers and keep them subscribed including in‑app hooks and paywalls, the purchase flow, pricing and packaging, payments, and subscription partnerships. The team is highly experimental, running a steady stream of A/B tests across iOS, Android, backend, and web, and balances quick optimizations on high‑traffic surfaces with larger bets like new tiers and partner offerings.

• 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

Exceptional candidates will have...

• Strong programming experience building reactive Android apps
• Demonstrated self‑direction, with a desire both to learn new techniques and mentor others
• Experience designing clean and maintainable APIs
• Experience writing unit tests and testable code

Benefits

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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 [e-mail].

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.

AI in Hiring

Duolingo uses AI technology to assist in our hiring process. We want to be transparent about how we use this technology and your rights. We use Greenhouse Software’s Talent Matching feature to assist with reviewing applications for the skills and experience we have decided are important for this role.

How it works

• Talent Matching reviews your resume and responses to application questions to determine the extent to which your qualifications match the job requirements selected for this role. These requirements and their desired weighting are established by our recruiters in collaboration with hiring managers.
• All Talent Matching output is reviewed by our recruiting and hiring teams, who make the final decision on each application. Talent Matching does not automatically disposition any candidate or make hiring decisions.

Salary Range:

$153,000 — $207,000 USD