Senior Software Engineer (React Native, Typescript)

Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of over 360,000 team members globally in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

• 5+ years of experience in mobile application development using React Native (Expo managed and bare workflows).
• Strong proficiency in TypeScript, JavaScript, and React (Web).
• Solid understanding of mobile application architecture, including concepts such as MVVM (conceptual), Clean Architecture, separation of concerns, and testable design.
• Experience with state management and data fetching solutions such as Redux / Redux Toolkit, Zustand, React Query.
• Hands‑on knowledge of React Native ecosystem (React Navigation, native modules, system APIs).
• Understanding of reactive and asynchronous programming patterns in JavaScript (hooks, async/await, event‑driven state).
• Experience with App Store / Google Play Store guidelines, publishing, and troubleshooting store‑related issues.
• Fluent English communication skills; German is a significant advantage.

• Develop, and enhance mobile applications using React Native, participating in the full software development lifecycle (requirements analysis, architecture, implementation, testing, deployment, and publishing to Google Play Store and Apple App Store).
• Take technical ownership of selected application modules or entire features, depending on the project scope.
• Contribute to architectural decisions, ensuring scalability, maintainability, and performance of mobile solutions.
• Integrate mobile applications with backend services, APIs, cloud platforms, and enterprise systems.
• Collaborate closely with UX/UI designers, product owners, backend developers, and QA teams to deliver high‑quality user experiences.
• Perform code reviews, share best practices, and support less experienced developers.
• Ensure high code quality by promoting best development practices (unit tests, automated testing, modern design patterns)
• Identify and address performance issues, stability risks, and security concerns.