The Role
Own the consumer mobile app across architecture, development, native modules, performance, stability, API integration, testing, CI, and App Store and Google Play releases. Build with React Native for iOS and Android, maintain Swift or Kotlin components, integrate payments, maps, analytics, and messaging SDKs, and manage signing, staged rollouts, and store distribution. The role also involves reviewing AI tooling and agents, with potential product testing on the road.
Summary Generated by Built In
Join the ride!
You own our consumer mobile app end to end, from architecture to store release. One
React Native codebase ships to iOS and Android, and you are accountable for its code, its
native layer, its releases and the app side of every API contract.
The app is how our customers experience the product every day. Your work keeps it fast,
stable and safe to change, and raises its quality and release confidence with every
version.
This position is Berlin based.
Your Responsibility
* Own the app's architecture, code quality, performance and stability on iOS and Android
* Build and maintain native modules in Swift or Kotlin where React Native is not enough
* Own native build, release and store distribution for iOS and Android
* Agree API contracts with backend engineers and handle offline, retry and error states
* Integrate and maintain third-party SDKs for payments, maps, analytics and messaging
* Build and maintain automated test coverage and run it in CI
* Keep the codebase's AI tooling in version control and review it like code
* Effectively deploy and use AI agents.
Your Experience
* 5+ years of React Native in production, shipped to both the App Store and Google Play
* Solid native knowledge: Swift or Objective-C with Xcode, Kotlin or Java with Android, Studio and Gradle
* Strong TypeScript and JavaScript, and experience with modern state management
* REST API integration with deliberate handling of async, offline and error states
* Automated testing with Jest and Detox or Maestro, run in CI such as GitLab CI or GitHub Actions
* Store releases with fastlane: signing, pre-release test tracks and staged rollouts
* Fluent in English, and eligible to work in Germany
Highly desired
* Experience in mobility, logistics or another operations-heavy consumer product
* Map-heavy apps: location permissions, push notifications and deep linking
* Payment SDK integration in a consumer app
* Comfortable reading backend code in a typed language and SQL
* Accessibility and localisation for a multi-language audience
* Daily use of AI coding agents, reviewing their output like any pull request
Nice to have
* A valid driving licence (EU category B or equivalent). Testing the product includes trip on the road.
__Don't tick every box? Get in touch anyway. Your drive to learn and grow matters a lot to us.__
Benefits
* __Mobility:__ Choose between monthly MILES credits or the Deutschlandticket.
* __Fitness:__ Enjoy a subsidized Urban Sports Club membership for your physical and mental well-being.
* __Discounts:__ Access 1,500+ providers for discounts on sneakers, theater visits, and more.
* __Home Office:__ Enjoy the flexibility of working from our office in Berlin and from home.
* __Retirement:__ Secure your financial future with our attractive pension plan.
* Growth: We prioritize personal development through knowledge sharing and training opportunities (with the support from our HR Team and the Team Leads).
* __Social Impact:__ We dedicate a portion of our revenue to support regional social projects, actively contributing to the well-being of society and the environment. #milescharity
You own our consumer mobile app end to end, from architecture to store release. One
React Native codebase ships to iOS and Android, and you are accountable for its code, its
native layer, its releases and the app side of every API contract.
The app is how our customers experience the product every day. Your work keeps it fast,
stable and safe to change, and raises its quality and release confidence with every
version.
This position is Berlin based.
Your Responsibility
* Own the app's architecture, code quality, performance and stability on iOS and Android
* Build and maintain native modules in Swift or Kotlin where React Native is not enough
* Own native build, release and store distribution for iOS and Android
* Agree API contracts with backend engineers and handle offline, retry and error states
* Integrate and maintain third-party SDKs for payments, maps, analytics and messaging
* Build and maintain automated test coverage and run it in CI
* Keep the codebase's AI tooling in version control and review it like code
* Effectively deploy and use AI agents.
Your Experience
* 5+ years of React Native in production, shipped to both the App Store and Google Play
* Solid native knowledge: Swift or Objective-C with Xcode, Kotlin or Java with Android, Studio and Gradle
* Strong TypeScript and JavaScript, and experience with modern state management
* REST API integration with deliberate handling of async, offline and error states
* Automated testing with Jest and Detox or Maestro, run in CI such as GitLab CI or GitHub Actions
* Store releases with fastlane: signing, pre-release test tracks and staged rollouts
* Fluent in English, and eligible to work in Germany
Highly desired
* Experience in mobility, logistics or another operations-heavy consumer product
* Map-heavy apps: location permissions, push notifications and deep linking
* Payment SDK integration in a consumer app
* Comfortable reading backend code in a typed language and SQL
* Accessibility and localisation for a multi-language audience
* Daily use of AI coding agents, reviewing their output like any pull request
Nice to have
* A valid driving licence (EU category B or equivalent). Testing the product includes trip on the road.
__Don't tick every box? Get in touch anyway. Your drive to learn and grow matters a lot to us.__
Benefits
* __Mobility:__ Choose between monthly MILES credits or the Deutschlandticket.
* __Fitness:__ Enjoy a subsidized Urban Sports Club membership for your physical and mental well-being.
* __Discounts:__ Access 1,500+ providers for discounts on sneakers, theater visits, and more.
* __Home Office:__ Enjoy the flexibility of working from our office in Berlin and from home.
* __Retirement:__ Secure your financial future with our attractive pension plan.
* Growth: We prioritize personal development through knowledge sharing and training opportunities (with the support from our HR Team and the Team Leads).
* __Social Impact:__ We dedicate a portion of our revenue to support regional social projects, actively contributing to the well-being of society and the environment. #milescharity
Skills Required
- 5+ years of React Native production experience
- Experience shipping applications to both the App Store and Google Play
- Solid native development knowledge with Swift or Objective-C, Xcode, Kotlin or Java, Android Studio, and Gradle
- Strong TypeScript and JavaScript skills
- Experience with modern state management
- REST API integration with deliberate handling of asynchronous, offline, and error states
- Automated testing experience with Jest and Detox or Maestro
- Experience running tests in CI, such as GitLab CI or GitHub Actions
- Experience with fastlane store releases, signing, pre-release test tracks, and staged rollouts
- Fluent English
- Eligibility to work in Germany
- Experience in mobility, logistics, or another operations-heavy consumer product
- Experience building map-heavy applications, including location permissions, push notifications, and deep linking
- Payment SDK integration experience in a consumer application
- Ability to read backend code in a typed language and SQL
- Experience with accessibility and localization for multilingual audiences
- Daily use of AI coding agents and ability to review their output
- Valid EU category B or equivalent driving licence
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The Company
What We Do
MILES Mobility is a leading car sharing and rental provider based in Berlin, dedicated to making urban travel sustainable, convenient, and accessible. The company offers a flexible, per-kilometer based model for renting cars and vans, providing an alternative to private car ownership. Operating in 14 cities with a fleet of over 18,000 vehicles, MILES focuses on simplifying urban mobility through its app-based service.
