Discussion

Android Engineer II — Kotlin, A/B Testing

Show

Profile match

78% 2 of 3 skills

androidapikotlin

Analyze match

How your CV reads against this role — fit, gaps, and ATS flags.

Location: New York, United States
Region: North America
Category: Mobile
Country
Company: Product
Size: 501-1000
Domains: EdTech

whatjobs Posted Jul 30, 2026

Summary

Builds and maintains Duolingo's Android app in Kotlin, focusing on subscriber conversion features and A/B testing to optimize user experience and revenue.

Duolingo, Inc. seeks an Android engineer to drive the Subscriber Conversion features, collaborating with product design and backend teams to ship native Kotlin apps. You will mentor juniors while delivering high-quality, testable code and maintaining APIs across services.

The role emphasizes experimentation, scalability for a large user base, and opportunities to influence pricing and packaging through robust Android experiences.

Show

Duolingo, Inc

2 weeks ago

Software Engineer II, Android

North America

Build and maintain Duolingo's Android app in Kotlin, focusing on subscriber conversion features like paywalls and payment flows, while mentoring junior engineers and running A/B experiments.

aiandroidapiioskotlin

Android Engineer (Kotlin) - Subscriber Conversion & Experiments

North America H-1B sponsor history USCIS — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

Builds and improves Android features in Kotlin for Duolingo’s paying users, collaborating with design and backend teams to drive subscriber conversions.

Software Engineer (Android)

North AmericaFull-time H-1B sponsor history USCIS — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

Builds and maintains Duolingo’s Android app in Kotlin, focusing on subscription conversion flows, A/B testing, and payments while mentoring junior engineers.

Android Engineer (Kotlin) - Subscriptions

Builds and maintains Kotlin-based Android features for Duolingo’s subscription conversion team, ensuring a responsive app and collaborating with design and backend teams.

Senior Android Engineer

North AmericaSenior H-1B sponsor history USCIS — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

Build and maintain Android features for Duolingo's language-learning app in Kotlin, focusing on core learning experiences and subscription flows.

Software Engineer II, Android

North America

Build and maintain Duolingo’s Android app in Kotlin, focusing on subscription conversion features like paywalls and payment flows, while mentoring junior engineers and running A/B experiments.

androidapiioskotlin

153 000 – 207 000 $

76% · 3/4 skills

Summary

Software Engineer II, Android

Android Engineer (Kotlin) - Subscriber Conversion & Experiments

Software Engineer (Android)

Android Engineer (Kotlin) - Subscriptions

Senior Android Engineer

Software Engineer II, Android

See also