Remote React Native Mobile Engineer – P2P App

Tether Ltd.; Ticino; Hybrid; CHF 120,000 - 150,000; Full time

Job summary

Tether Ltd. is hiring a mobile software engineer to develop and maintain Keet Mobile for iOS and Android using React Native and Expo. You’ll own features end to end, from UI to integrating the P2P core APIs.

You will collaborate with remote teams across product, design, and core P2P engineering, write tests, and help optimize startup time, battery usage, and network efficiency. Experience with Redux, Redux-Saga, and native iOS/Android knowledge is preferred.

Qualifications

• Significant experience with React Native, Redux, and Redux-Saga.
• Strong JavaScript (ES6+) skills and familiarity with WebSockets and REST APIs.
• Knowledge of native iOS/Android capabilities (Swift/Kotlin) is a plus.
• Experience working with remote teams.
• Proactive in modernizing and optimizing mobile/web apps.

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

WebSockets

REST APIs

Swift/Kotlin

Remote teamwork

Tools

Expo

Xcode/Android Studio

Job description

Tether Ltd. is hiring a mobile software engineer to develop and maintain Keet Mobile for iOS and Android using React Native and Expo. You’ll own features end to end, from UI to integrating the P2P core APIs.

You will collaborate with remote teams across product, design, and core P2P engineering, write tests, and help optimize startup time, battery usage, and network efficiency. Experience with Redux, Redux-Saga, and native iOS/Android knowledge is preferred.