(Senior) React Native Engineer (m/f/x) - Based in Germany

Cara Care, a digital health company backed by Bayer AG, is on a mission to improve people’s digestive health through technology. As we expand our product portfolio and modernize our platform, we’re looking for a versatile, pragmatic, and forward-thinking (Senior) React Native Engineer (m/f/x) to help shape the future of digital therapeutics.Your RoleYou’ll join a cross-functional product team with high ownership, lean processes, and a clear focus: deliver real impact to patients. We’re looking for someone who thrives on solving real-world problems with code, is technology-open, and knows when to build fast and when to build right. You’ll also help us use AI tools and coding agents thoughtfully in day-to-day engineering, turning emerging capabilities into reliable workflows that improve how we design, build, test, and operate patient-facing products.Your ResponsibilitiesDesign, build, and ship high-quality React Native apps for iOS and Android with TypeScript.Use AI coding agents to implement features, refactor code, and generate tests. Define clear tasks and constraints, provide relevant context, and validate the resulting changes through code review, automated tests, and checks on real devices.Own the full mobile lifecycle: architecture, implementation, automated testing, release management, monitoring, and iteration.Integrate native capabilities (push notifications, deep links, biometric auth, camera/sensors); write and maintain native modules when needed (Swift/Kotlin).Drive mobile performance and reliability (startup time, bundle size, memory, battery) and meet accessibility best practices.Set up and evolve mobile CI/CD (e.g., Fastlane, GitHub Actions/Bitrise), internal testing (TestFlight/Play Console), and release pipelines.Collaborate closely with Product, Design, and Medical to explore, define, and deliver patient-centric features, and to improve our current platform.Connect AI-assisted development workflows to design and engineering tools via MCP, for examp