Remote Senior React Native Mobile Engineer — Offline-First

Atomic Hr; Tandil; Remote; ARS 92,724,000 - 139,086,000; Full time

Benefits offered by this job

Fully remote LATAM contractor

US-timezone core hours

Own one app from start to launch

Job summary

Atomic HR is seeking a dedicated mobile developer to own an offline-first iOS/Android app from inception through public launch on App Store and Google Play. You’ll work in two-week sprints with AI-assisted coding, review every diff, add tests, and determine sync, storage and release approaches.

You’ll collaborate with a backend counterpart on APIs and report to leadership while documenting risk notes and tradeoffs for clients.

Qualifications

• 4+ years building mobile applications, including React Native released on both App Store and Google Play.
• Offline-first architecture experience: local storage, write queues, retries, conflict handling.
• Strong English communication for PRs, risk notes and client explanations.
• Experience working from written acceptance criteria and pushing back on merges that miss them.
• Experience with testing and CI around production mobile work.

Responsibilities

• Set up Apple and Google developer accounts, signing, CI builds and testing tracks.
• Build local storage, write queue and retry logic to support offline use.
• Agree sync and upload APIs with backend developer and resolve conflicts.
• Implement phone-number sign-in with SMS codes and push notifications with SMS fallback.
• Build camera capture and e-signature flows and versioned records.
• Measure startup time, memory use and app size on low-end Android devices.
• Handle store submissions, privacy disclosures and monitoring for crashes and sync.

Skills

React Native

Offline-first development

Performance optimization

English communication

CI/CD

Tools

TypeScript

AI coding tools (Cursor/Claude Code)

CI/CD tooling

Job description

Atomic HR is seeking a dedicated mobile developer to own an offline-first iOS/Android app from inception through public launch on App Store and Google Play. You’ll work in two-week sprints with AI-assisted coding, review every diff, add tests, and determine sync, storage and release approaches.

You’ll collaborate with a backend counterpart on APIs and report to leadership while documenting risk notes and tradeoffs for clients.