Senior React Native Mobile Engineer | Offline-First & P2P

Werben HR LLC; Tandil; Remote; ARS 117,092,000 - 191,605,000; Full time

Job summary

Tether is seeking a Mobile Engineer React Native (100% Remote) to own Keet Mobile from project setup through public release on iOS and Android. You will work with a backend counterpart and lead end-to-end build, QA, and release processes.

This fully remote contractor role from LATAM overlaps core US hours, with two-week sprints and AI-assisted coding. You bring 4+ years of React Native experience, offline-first design, and strong English communication.

Qualifications

• 4+ years building mobile applications, including React Native applications released on both the App Store and Google Play.
• Offline-first work you built yourself: local storage, queued writes, retries and conflict handling.
• Daily use of AI coding tools on production mobile work, with TypeScript, automated tests and CI around it.

Responsibilities

• Set up Apple and Google developer accounts, signing, CI builds and testing tracks.
• Build the local storage, write queue and retry logic that keep the app working offline.
• Agree the sync and upload APIs with the backend developer, and decide how conflicting edits resolve.
• Build phone-number sign-in with SMS codes, and push notifications that fall back to SMS.
• Build camera capture and e-signature flows that save each signed record as a new version.

Skills

React Native

Offline-first

AI coding tools

English communication

Code reviews

Tools

Cursor

Claude Code

Job description

Tether is seeking a Mobile Engineer React Native (100% Remote) to own Keet Mobile from project setup through public release on iOS and Android. You will work with a backend counterpart and lead end-to-end build, QA, and release processes.

This fully remote contractor role from LATAM overlaps core US hours, with two-week sprints and AI-assisted coding. You bring 4+ years of React Native experience, offline-first design, and strong English communication.