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# Mobile Engineer - React Native

- **Company:** Tether Operations Limited
- **Location:** UK (Remote available)
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Android Studio, Apple Xcode, Code Review, Design of User Interfaces, Push Technology, E2e Testing, Tethering, Web Applications, WebSocket, Kotlin, Build Tools, React Native, React Redux, Restful APIs, Es2015
- **Published:** October 15, 2026
- **Apply:** https://startup.jobs/mobile-engineer-react-native-100-remote-worldwide-job-tether-operations-limited-10455536

## About the Role

If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.

Are you ready to be part of the future?, * Significant experience with React Native, Redux for state management and Redux-Saga

 * Highly proficient in JavaScript and ES6+.
 * Experienced 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 any built something amazing on any p2p frameworks .

## Description

In this role, you will develop and maintain Keet Mobile, our peer-to-peer chat and calling app for iOS and Android. Keet Mobile is built with React Native and Expo, and its P2P core runs on the device itself in a Bare worklet. You'll own features end to end, from UI/UX implementation to using the P2P core apis.

You will:

 - 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, bio-metrics 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, Recruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:
 * Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/
 * Verify the recruiter's identity. All our recruiters have verified LinkedIn profiles. If you're unsure, you can confirm their identity by checking their profile or contacting us through our website.
 * Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.
 * Double-check email addresses. All communication from us will come from emails ending in @tether.to or @tether.io
 * We will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.