Senior React Native Developer

Development of a cross-platform mobile application (iOS + Android) in React Native for end-users, integrating with the company's IoT devices.

Our expectations

• Minimum 4 years of experience in React Native and 5+ years in general frontend development (JavaScript/TypeScript, HTML, CSS).

• Strong proficiency in React Native, including best practices for cross-platform mobile application development (iOS + Android).

• Experience in integrating mobile applications with IoT devices, including:

• Reading device parameters (temperature, operating modes, energy consumption, historical data).

• Controlling devices via the app (schedules, power on/off, operating mode settings).

• Data synchronization with cloud backends and handling push notifications.

• Ability to work with backends, microservices, and IoT platforms, including the implementation of business logic and network communication.

• Experience with multi-brand and multi-language applications, scalable across different markets.

• Knowledge of mobile and integration testing, test automation, and CI/CD (e.g., Bitrise, GitHub Actions, Fastlane).

• Familiarity with mobile application monitoring and debugging tools.

• Ability to ensure application and communication security (user authentication, data encryption, securing communication channels between the app, device, and cloud).

• Application performance optimization: startup time, bundle size, responsiveness, offline mode support, and connectivity issue handling.

• English min. B2 level

• Ready to work from the office in Katowice 1x/week (the team meets on Wednesday)

Welcome Skills

• Proficiency in TypeScript, Redux / MobX, React Navigation, and GraphQL.

• Experience working with applications requiring high scalability and integration with cloud platforms.

• Knowledge of UX/UI principles specifically for mobile applications.

• Experience in migrating existing applications to React Native or modernizing the technology stack.

• Knowledge of security standards for mobile and IoT applications.