Mobile Engineer

Join Tether and shape the future of digital finance as we pioneer a global financial revolution. We are looking for an experienced Mobile Engineer to develop and maintain Keet Mobile, our innovative peer-to-peer chat and calling app built with React Native on iOS and Android.

About the Role

You will own features end-to-end in this high-impact role, from UI/UX implementation to leveraging P2P core APIs. Our custom JS runtime handles heavy lifting while our 100% React Native-based UI logic ensures flexibility and rapid iteration capabilities.

Key Responsibilities

• Build and polish features across chat, voice/video calls, media sharing, device pairing, and identity backup.
• Integrate native platform capabilities including push notifications, camera access, biometrics, and background tasks on both iOS and Android.
• Profile and optimize performance on real devices, focusing on startup time, long chats, media handling, battery usage, and network efficiency.
• Write comprehensive unit and end-to-end tests to ensure release stability through CI pipelines and crash reporting tools.
• Collaborate closely with core P2P, design, and product teams while maintaining a high standard of code quality in your peer reviews.

Required Skills & Experience

• Significant experience with React Native, Redux for state management, and Redux-Saga.
• High proficiency in JavaScript (ES6+) and modern development practices.
• Familiarity with WebSockets and RESTful APIs integration.
• Knowledge of native languages (Swift/Kotlin) and build tools (Xcode/Android Studio) is advantageous but not mandatory.
• Demonstrated experience working effectively within remote teams across different time zones.
• A passion for modernizing and optimizing mobile or web applications to enhance user experiences globally.