Remote Mobile Developer — Own an Offline-First App

Alpha Efficiency; Rosario; Remote; ARS 138,361,000 - 184,482,000; Full time

Benefits offered by this job

Fully remote LATAM

US hours overlap

Own app from first project

Job summary

Alpha Efficiency seeks a skilled mobile developer to own an offline-first iOS/Android app from setup to public launch. You will collaborate with a lead developer and backend counterpart in a fully remote LATAM role.

You’ll implement local storage, sync, and release workflows, review changes, and ensure robust testing with AI coding tools and CI in place. English communication with clients is essential.

The role offers US-friendly core hours and the chance to ship a production app across stores.

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
• Performance tuning on low-end Android, with startup time or memory measured before and after a change
• Daily use of Cursor, Claude Code or a similar AI coding tool on production mobile work, with TypeScript, automated tests and CI around it
• Clear written and spoken English for PR descriptions, risk notes and tradeoff explanations to a client team
• Experience working from written acceptance criteria, and the judgment to push back on a merge that misses them

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
• Measure and improve startup time, memory and app size on low-end Android phones
• Handle store submissions, privacy disclosures and review rejections, and add crash and sync monitoring

Skills

React Native

TypeScript

Offline-first architecture

Performance optimization

English communication

Tools

Cursor AI Coding

Claude Code

CI/CD tooling

Job description

Alpha Efficiency seeks a skilled mobile developer to own an offline-first iOS/Android app from setup to public launch. You will collaborate with a lead developer and backend counterpart in a fully remote LATAM role.

You’ll implement local storage, sync, and release workflows, review changes, and ensure robust testing with AI coding tools and CI in place. English communication with clients is essential.

The role offers US-friendly core hours and the chance to ship a production app across stores.