Remote Mobile Engineer — React Native & P2P Chat

Tether; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Tether Ltd. seeks a mobile engineer to develop and maintain Keet Mobile, a React Native app for iOS and Android, with end-to-end ownership from UI/UX to P2P core APIs.

You will build features for chat, calls, media sharing, and identity backup; integrate push, camera, biometrics, and background tasks; and optimize startup time, battery, and network use on real devices. Remote collaboration is central to the role.

Qualifications

• Significant experience with React Native, Redux for state management and Redux-Saga.
• Highly proficient in JavaScript and ES6+.
• Experience with WebSockets, RESTful based APIs.
• Knowledge in native languages (Swift/Kotlin) and familiarity with native build tools (Xcode/Android Studio) is advantageous.
• Experience working with a remote team.
• Interested in modernizing and optimizing different mobile or web applications.
• Bonus points if you have anything built on any P2P frameworks.

Responsibilities

• Build and polish features across chat, voice and video calls, media sharing, device pairing and identity backup.
• Integrate native platform capabilities such as push notifications, camera, biometrics and background tasks on both iOS and Android.
• Profile and optimise performance on real devices, including startup time, long chats, media handling, battery and network use.
• Write unit and end-to-end tests, and help keep releases stable through CI and crash reporting.
• Work closely with the core P2P, design and product teams, and review code with a high bar for quality.

Skills

React Native

Redux

Redux-Saga

JavaScript

ES6+

WebSockets

REST APIs

Swift/Kotlin

Xcode/Android Studio

Remote teamwork

Job description

Tether Ltd. seeks a mobile engineer to develop and maintain Keet Mobile, a React Native app for iOS and Android, with end-to-end ownership from UI/UX to P2P core APIs.

You will build features for chat, calls, media sharing, and identity backup; integrate push, camera, biometrics, and background tasks; and optimize startup time, battery, and network use on real devices. Remote collaboration is central to the role.