Responsibilities
- Collaborate with product managers and designers to drive user growth.
- Develop, release, and maintain native iOS applications primarily in Swift.
- Build features that deliver high-quality learning experiences and improve metrics such as daily active users.
- Contribute to code reviews and collaborate across teams to ensure quality and scalability.
- Run experiments and use fact-based decisions to improve user experiences.
Requirements
- Bachelor’s degree in Computer Science or a related technical field.
- 2–5 years of experience programming in Swift.
- Strong foundations in data structures, algorithms, and software design.
- Experience building and maintaining production-level iOS applications is preferred.
- Strong technical knowledge of iPhone and iPad development using Swift, Cocoa Touch, and related frameworks is preferred.
- Experience designing clean and maintainable APIs is preferred.
- Proficiency in spoken and written English is preferred.
- Relocation to Beijing, China is required.
Benefits
- Benefits are referenced through a linked employee well-being benefits page, but specific benefits are not listed.
- The position is based in Beijing, China, and requires relocation to Beijing.
Tech Stack
Categories
About Duolingo
Duolingo is the most downloaded education app in the history of the App Store. Our mission is to develop the best education in the world and make it universally available. Learning a new language is hard, but staying motivated is often the hardest part. That’s why we use fun, bite-sized, game-like lessons designed to keep you engaged and to drive real learning outcomes. Our approach is grounded in efficacy: we continuously test and improve our methods to ensure learners make meaningful progress. We also believe in democratizing education by offering an effective, high-quality free product. Developing a great free product is essential to our mission, ensuring that anyone with a smartphone can access learning that works. When it comes to utilizing AI tools, we have a golden rule: we use it when it clearly improves outcomes for learners. We don’t use it as a shortcut or a replacement for people, but as a tool to enhance learning experiences and efficacy. Duolingo has been named to: Fast Company’s Most Innovative Education Company (2026, 2022), Apple Design Award (2023), TIME100 Most Influential Companies (2023), Fast Company Best Workplaces for Innovators (2022), among others.