iOS Software Engineer (Senior/Staff/Senior Staff)

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!

Note: This role is open to considering engineers across various levels (Senior, Staff, or Senior Staff). If moved forward, your recruiter will discuss in more details!

Read about the technical problems our Engineers work on 

Below you can find more information about teams we're hiring for

Math Team:

• As an iOS engineer on the Math team, you will help build the technology that changes how people around the world learn Math. The features that you ship will help learners to develop core math skills in a fun, engaging way. We’re looking for engineers who love building new products and features.

Monetization Area:

• As an iOS engineer in the Monetization Area, you will work on our premium subscriptions—Super Duolingo and Duolingo Max—the key revenue drivers behind our business. Your contributions will touch packaging, pricing, and hooks for our subscriptions, and game mechanics such as Hearts and Gems. We're seeking engineers who are passionate about bottom-line business impact, and who bring fresh insights and a creative technical approach.
• The Monetization Area focuses on Duolingo's key business drivers—subscriptions, ads, and in-app purchases. Our area's goal is to build the best premium experiences for our learners while ensuring the sustainability and success of our business model. You will play an instrumental role in the strategic direction of Duolingo by developing and refining the methods that make our monetization efforts more effective and efficient

Time Spent Learning Team:

• As an iOS engineer on the Time Spent Learning Team, you will work on making Duolingo fun and engaging. This includes improving our existing gamification features such as Leaderboards, Daily Quests, and XP boosts, as well as creating new ones. The features that you ship will motivate learners to learn a bit more each day, helping them reach their proficiency goals faster. We're looking for engineers who care about our learners' outcomes and love building out new features.

Music Team:

• As an iOS engineer on the Music team, you will help build the technology that changes how people around the world learn Music. The features that you ship will help learners to develop core music skills like sight reading and ear training in a fun, engaging way. We’re looking for engineers who love building new products and features and bring fresh ideas about teaching Music on mobile devices.

Design Systems Team:

• At Duolingo we take great pride in our thoughtful and beautiful design language on web, iOS, and Android. The Design Systems team is modernizing our UI components to improve the consistency and cohesion across all of Duolingo’s learning experiences. Over the next year, the team is expanding to establish our first motion and animation systems to systemize and scale more of what makes Duolingo so delightful.

Experimental AI:

• As an iOS engineer on the Experimental AI team, you will help build the world’s best conversation partner and make Duolingo known for it. The features that you ship will help learners to develop conversation skills across all levels, and you’ll be using the latest AI technologies.  We’re looking for engineers who love building new products and features.

You will...

• Collaborate on software projects with product design and backend aspects
• Develop, release, and maintain native iOS applications, primarily in Swift
• Mentor and set technical direction for junior engineers across the company

You have...

• A Bachelor’s degree in Computer Science or a related technical field
• A sol