Senior React Native Engineer - App Owner (w/m/x/d)

Free resume; Berlin; Hybrid; EUR 53,000 - 59,000; Full time

Benefits offered by this job

MILES credits

Urban Sports Club membership

Discounts program

Home office & Berlin office

Pension plan

Growth opportunities

Social impact initiatives

Job summary

Free resume in Berlin invites an experienced React Native developer to own our consumer mobile app end to end, from architecture to release. You will maintain a single React Native codebase deployed to iOS and Android, accountable for code quality, native layer, and API contracts.

You will work remotely full-time with occasional collaboration from our Berlin office, build native modules, manage store releases with fastlane, integrate third-party SDKs, and ensure robust automated testing in CI.

Qualifications

• 5+ years of React Native production experience.
• Strong native knowledge: Swift/Obj-C or Kotlin/Java.
• REST API integration with offline and error handling.
• Automated testing with modern frameworks and CI/CD.
• Fluent in English; eligible to work in Germany.

Responsibilities

• Own the app's architecture, code quality, performance and stability for iOS and Android.
• Build and maintain native modules where React Native is not enough.
• Own native builds, releases and store distribution for iOS and Android.
• Agree API contracts with backend engineers and handle offline/retry states.
• Integrate third-party SDKs for payments, maps, analytics and messaging.
• Maintain automated test coverage and run in CI.
• Keep AI tooling in version control and review outputs like code.
• Deploy and use AI agents effectively.

Skills

React Native

Swift/ObjC

Kotlin/Java

REST APIs

CI/CD & Testing

English fluency

Tools

Xcode

Android Studio

Gradle

Jest

Detox

Fastlane

Job description

Direct company application on www.arbeitnow.com . Zero third-party aggregator forms.

Job Description

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.

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
• 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.

• 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

Remote full-time en 53,000–59,000 EUR/yr