Senior React Native Mobile Engineer - Offline-First, Remote

Agileengine, Llc.; Municipio de Rincón de los Sauces; Remote; ARS 138,361,000 - 199,855,000; Full time

Benefits offered by this job

Fully remote contractor role from LATM

Core hours in US time zones

One app to own through release

Job summary

Tether is seeking a Mobile Engineer (React Native) to own an offline-first iOS/Android app from setup to public release on both stores. You’ll work with a lead developer and backend counterpart, review every diff, and ensure reliability via tests and monitoring.

Join a remote-first team offering two-week sprints, AI coding tool support, and a path to launch a single app end-to-end while shaping sync, storage, and release decisions for client projects.

Qualifications

• 4+ years building mobile apps, including React Native apps released on App Store and Google Play.
• Offline-first experience with local storage, queued writes, retries, and conflict handling.
• Performance tuning on low-end Android devices, measuring startup time/memory changes.
• Daily use of AI coding tools (Cursor/Claude Code) with TypeScript, automated tests, and CI.
• Clear written and spoken English for client risk notes and tradeoffs.
• Experience working from written acceptance criteria and pushing back on merges that miss them.

Responsibilities

• Set up Apple/Google developer accounts, signing, CI builds and testing tracks.
• Build local storage, write queue, and retry logic for offline reliability.
• Define sync/upload APIs with backend, resolve conflicts in edits.
• Implement phone-number sign-in with SMS codes and SMS fallback for push notifications.
• Build camera capture and e-signature flows, saving versioned records.
• Improve startup time, memory and app size on low-end devices.
• Handle store submissions, disclosures, review rejections, and crash monitoring.

Skills

React Native

TypeScript

Offline-first

Performance tuning

English communication

Remote collaboration

Tools

Cursor

Claude Code

CI/CD tools

Redux-Saga

Job description

Tether is seeking a Mobile Engineer (React Native) to own an offline-first iOS/Android app from setup to public release on both stores. You’ll work with a lead developer and backend counterpart, review every diff, and ensure reliability via tests and monitoring.

Join a remote-first team offering two-week sprints, AI coding tool support, and a path to launch a single app end-to-end while shaping sync, storage, and release decisions for client projects.