Senior iOS Software Engineer, AI Stories

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.

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  About The Role...

Duolingo Stories has been successful in adding a new, engaging learning experience. We believe they can achieve even greater success by making them more immersive and interactive. Our goal is to create an innovative experience for users to read stories, leveraging their feedback to continuously improve the quality of our content.

We are seeking an iOS engineer to help us develop this new user experience within the Duolingo app. As an iOS engineer, you will be responsible for leveraging our machine-learning algorithms to recommend stories based on user signals and building a dedicated experience for stories in the app.

Why This Matters

• Enhance User Engagement: By delivering more compelling content, we aim to significantly boost user engagement.
• Innovate with AI: Develop a zero-to-one feature using generative AI that provides a new, captivating experience within our app.
• Drive Metrics: Gain insights into driving in-app purchase and engagement metrics improvements.

What You'll Learn

• Building a cutting-edge feature from scratch using generative AI.
• Implementing and refining an In-App Purchase (IAP) system.
• Leveraging user feedback and analytics to improve content quality.
• Collaborating with cross-functional teams to integrate the Stories feature seamlessly into the Duolingo app.

  You Have...

• A Bachelor’s degree in Computer Science or a related technical field
• A solid foundation in computer science with strong competencies in data structures, algorithms, and software design
• Programming experience in Swift

  Exceptional Candidates Will Have...

• 5 years of programming experience in Swift
• Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks
• Experience designing clean and maintainable APIs
• Experience with multithreaded programming
• Experience writing unit tests and testable code
• Knowledge of iOS SDK performance tools and optimization techniques

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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 here.

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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