Remote Mobile Engineer — React Native & Offline-First

Outlier; Tandil; Remote; ARS 85,158,000 - 127,737,000; Full time

Job summary

Tether is hiring a Mobile Engineer with React Native to own the Keet Mobile app end-to-end from UI to P2P core on iOS and Android. You will work remotely from LATAM, collaborating with a global team and using AI-assisted coding tools daily.

You’ll focus on offline-first capabilities, performance optimization, and robust testing, with core hours aligned to US time zones and full ownership of the release process across both app stores.

Qualifications

• 4+ years building mobile applications, including React Native apps released on both App Store and Google Play.
• Offline-first architecture with local storage, queued writes, retries and conflict handling.
• Performance tuning on mobile devices, especially low-end Android devices, focusing on startup time and memory usage.

Responsibilities

• Build and maintain Keet Mobile across iOS/Android, end-to-end ownership from UI to P2P logic.
• Integrate native capabilities: push notifications, camera, biometrics, background tasks.
• Profile and optimize performance on real devices and long-running chats.
• Write unit and end-to-end tests; maintain CI and crash reporting for releases.
• Collaborate with P2P, design and product teams; review code with high quality standards.

Skills

4+ years mobile apps

React Native

Offline-first

Performance tuning

AI coding tools

English communication

Tools

Redux

Redux-Saga

WebSockets

REST APIs

Job description

Tether is hiring a Mobile Engineer with React Native to own the Keet Mobile app end-to-end from UI to P2P core on iOS and Android. You will work remotely from LATAM, collaborating with a global team and using AI-assisted coding tools daily.

You’ll focus on offline-first capabilities, performance optimization, and robust testing, with core hours aligned to US time zones and full ownership of the release process across both app stores.