Senior Mobile React Native Developer

Introduction

We are looking for an experienced Senior React Native Developer to join the development of our mobile app solution.

You will work in a cross-functional engineering team building a large-scale, multi-brand customer application based on a hybrid architecture combining React Native, native iOS/Android capabilities, WebViews and backend services.

You will take ownership of complex mobile implementation topics, bring deep technical expertise to the React Native codebase and support other developers through mentoring and technical guidance.

Tasks

sponsibilities

• Design, develop and maintain complex mobile features using React Native, React and TypeScript
• Implement and contribute to integration patterns between React Native, WebViews and backend APIs (BFF layer), including native device capabilities where required
• Contribute to and maintain mobile CI/CD topics, including build configuration, code signing and release automation
• Drive code quality through code reviews, testing practices and coding standards
• Diagnose and resolve complex cross-layer defects across React Native, WebViews and backend services
• Take a leading role in application builds, releases, performance and production stability
• Contribute React Native expertise to technical and architecture discussions, including performance and security
• Mentor other React Native developers and support onboarding
• Collaborate closely with Technical Leads, Architects, Backend/DevOps engineers, Product Owners and other engineering teams

Profile

• 6+ years of professional experience in mobile app development, including 4+ years of hands-on experience with React Native
• Experience in digital industries with complex customer journeys such as telecommunications, banking, insurance, utilities or e-commerce
• Strong TypeScript skills, including experience working with large and complex codebases
• Solid understanding of both Android and iOS platforms
• Experience with REST APIs, BFF integration patterns and authentication flows; OIDC/OAuth2 experience is a plus
• Strong experience with WebViews and hybrid mobile architectures at scale, including JavaScript-based bridging
• Experience with native iOS/Android integrations or modules is a plus
• Demonstrated experience optimizing application startup time, rendering performance, stability and responsiveness
• Strong experience with mobile app build, signing and release processes for iOS and Android
• Strong understanding of mobile application security, secure storage and authentication-related concerns
• Experience with mobile observability, crash analytics and performance monitoring, and using production data to identify and resolve stability or performance issues
• Experience with automated testing across unit, integration and end-to-end levels, as well as Git and CI/CD
• Strong analytical and problem-solving skills, including the ability to work through complex and ambiguous technical problems
• Experience mentoring developers and contributing to coding standards and engineering practices
• Experience with AI-assisted software development across the SDLC, for example for coding, unit test generation, refactoring, debugging or developer productivity, is a plus
• Experience working in agile and international development teams
• Proficiency in English; German is a plus

• 6+ years of professional experience in mobile app development, including 4+ years of hands-on experience with React Native
• Experience in digital industries with complex customer journeys such as telecommunications, banking, insurance, utilities or e-commerce
• Strong TypeScript skills, including experience working with large and complex codebases
• Solid understanding of both Android and iOS platforms
• Experience with REST APIs, BFF integration patterns and authentication flows; OIDC/OAuth2 experience is a plus
• Strong experience with WebViews and hybrid mobile architectures at scale, including JavaScript-based bridging
• Experience with native iOS/Android integrations or modules is a plus
• Demonstrated experience optimizing application startup time, rendering performance, stability and responsiveness
• Strong experience with mobile app build, signing and release processes for iOS and Android
• Strong understanding of mobile application security, secure storage and authentication-related concerns
• Experience with mobile observability, crash analytics and performance monitoring, and using production data to identify and resolve stability or performance issues
• Experience with automated testing across unit, integration and end-to-end levels, as well as Git and CI/CD
• Strong analytical and problem-solving skills, including the ability to work through complex and ambiguous technical problems
• Experience mentoring developers and contributing to coding standards and engineering practices
• Experience with AI-assisted software development across the SDLC, for example for coding, unit test generation, refactoring, debugging or developer productivity, is a plus
• Experience working in agile and international development teams
• Proficiency in English; German is a plus