Tech stack: React Native mobile ecosystem JavaScript TypeScript REST/GraphQL Requirements: 4+ years of commercial experience in mobile development (Android and/or iOS). Expert-level knowledge of React Native. A 'mobile-first' mindset with experience in building complex mobile applications. Deep understanding of the mobile ecosystem (build processes, testing, and store publication). Strong proficiency in JavaScript and TypeScript. Experience integrating with APIs (REST / GraphQL). Strong problem-solving skills and the ability to work effectively both independently and in a team. About the Role:We are looking for an experienced Mobile Developer (Mid+ or Senior level) with at least 4 years of commercial experience in building mobile applications for Android and/or iOS.The ideal candidate is a mobile-first specialist—we are looking for someone whose expertise is rooted deeply in the mobile ecosystem rather than web development. You should have a strong command of React Native and a passion for creating high-performance, user-centric mobile experiences.The Project:You will join a project for a major international corporation in the energy and chemical sector. We are developing a modern mobile application for B2B and B2C users that manages fuel cards, loyalty programs, and exclusive discounts.The app has a real-world impact on the daily lives of drivers, supporting them on the road and through charging infrastructure. Key features include: User Management: Smooth B2B and B2C registration and login. Benefits: Fuel card management, loyalty rewards, and discount tracking. Maps & Geolocation: Searching for stations and points of interest. E-Mobility: Starting/stopping EV charging sessions directly from the app with real-time (live) status tracking. Advanced Features: CarPlay integration (MVP) and dynamic widgets for quick access to key information. Main responsibilities: Developing and maintaining mobile applications using React Native. Collaborating closely with the Product Team, Backend Developers, and UX/UI Designers. Ensuring high code quality, application performance, and stability. Actively participating in product roadmapping and technical decision-making. Conducting code reviews and sharing knowledge with the team Nice to Have Experience with native development: Kotlin/Java (Android) or Swift (iOS). Hands-on experience with native deployment (Google Play Store / App Store, certificates, provisioning, signing). Knowledge of CI/CD pipelines tailored for mobile apps. Experience in mobile performance optimization. Background in designing mobile application architecture.