Remote Mobile Engineer - React Native & P2P Core

Tether; Ticino; Remote; CHF 100,000 - 150,000; Full time

Job summary

Tether is hiring to develop and maintain Keet Mobile, a peer-to-peer chat and calling app for iOS and Android, built with React Native/Expo and a device-based P2P core. You will own features end-to-end, from UI to P2P integration, collaborating with the core P2P, design and product teams.

We value deep JavaScript/React Native expertise, Redux/Redux-Saga know-how, and experience with native platforms (Swift/Kotlin).

Qualifications

• 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.

Responsibilities

• 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

Skills

React Native

Redux for state management

Redux-Saga

JavaScript/ES6+

WebSockets

RESTful APIs

Remote teamwork

P2P frameworks

Tools

Swift

Kotlin

Xcode

Android Studio

Job description

Tether is hiring to develop and maintain Keet Mobile, a peer-to-peer chat and calling app for iOS and Android, built with React Native/Expo and a device-based P2P core. You will own features end-to-end, from UI to P2P integration, collaborating with the core P2P, design and product teams.

We value deep JavaScript/React Native expertise, Redux/Redux-Saga know-how, and experience with native platforms (Swift/Kotlin).