Das ist der Job
This shared connection through learning helps us to grow and enhance the language journeys of our members.
Darum lohnt es sich
Your role will be to: Mature and modernize our existing iOS codebase. Communicate clearly, collaborate well across teams, and are curious about new t About Tandem Tandem is the leading global language learning community, where more than 30 million members from over 200 countries practice languages together.
The concept of learning from each other is not only an integral part of the Tandem community but it is also at the heart of our everyday lives at Tandem. Build and ship new product features. Ensure we take full advantage of iOS platform capabilities. Help shape technical decisions and drive engineering excellence.
You are the right fit for the role if you: Have 5+ years of iOS development experience with Swift (and ideally Objective‑C). Have strong knowledge of the iOS ecosystem: UIKit, SwiftUI, etc. Are experienced with reactive programming and building scalable, maintainable solutions (Clean Architecture, modularization, design patterns).
Have worked on production apps at scale (500k+ users) and care about performance and reliability. Can lead technical design discussions, act as the iOS expert in the room, and provide constructive feedback. Have experience with CI/CD and enjoy improving engineering practices.
