Senior React Native Engineer - Remote, Own a Full Mobile App

Bluelight; Ciudad de Mendoza; Remote; ARS 84,714,000 - 127,071,000; Full time

Job summary

Tether seeks a Mobile Engineer to own Keet Mobile end-to-end, building a React Native app for iOS and Android with offline-first architecture. You’ll work with a small team, sign-offs with a backend counterpart, and deliver a first-class experience across stores while leveraging AI coding tools daily.

Responsibilities include end-to-end feature delivery, performance tuning on low-end devices, and ensuring robust offline storage, syncing, and monitoring.

Qualifications

• 4+ years building mobile applications, including React Native released on App Store and Google Play.
• Offline-first work with local storage, queued writes, retries and conflict handling.
• Performance tuning on low-end Android devices with measurable changes.
• Daily use of AI coding tools, TypeScript, automated tests and CI.
• Strong written and spoken English for client communications and PR notes.
• Experience working from written acceptance criteria and defending scope.

Responsibilities

• Build and polish features across chat, voice and video calls, media sharing, device pairing and identity backup
• Integrate push notifications, camera, biometrics and background tasks on iOS and Android
• Profile and optimise performance on real devices, including startup time, chats and media handling
• Write unit and end-to-end tests; maintain releases with CI and crash monitoring
• Collaborate with core P2P, design and product teams; review code to uphold quality

Skills

React Native

Offline-first

Performance tuning

TypeScript

AI coding tools

English communications

Acceptance criteria

Tools

Redux

WebSockets

REST APIs

Swift

Kotlin

Xcode

Android Studio

Job description

Tether seeks a Mobile Engineer to own Keet Mobile end-to-end, building a React Native app for iOS and Android with offline-first architecture. You’ll work with a small team, sign-offs with a backend counterpart, and deliver a first-class experience across stores while leveraging AI coding tools daily.

Responsibilities include end-to-end feature delivery, performance tuning on low-end devices, and ensuring robust offline storage, syncing, and monitoring.