Remote Mobile Engineer - Offline-First React Native

Alpha Efficiency; La Pampa; A distancia; ARS 63.536.000 - 127.071.000; Jornada completa

Descripción de la vacante

Alpha Efficiency seeks an experienced mobile engineer to own offline-first iOS/Android app development in a fully remote LATAM contract. You will start from project setup, manage the write queue, sync, releases and tests, and own the app through public launches on App Store and Google Play alongside a backend counterpart.

You bring 4+ years building mobile apps with React Native, offline-first architecture, performance tuning for low-end Android devices, and a strong habit of writing tests, CI,

Formación

• 4+ years building mobile applications, including React Native applications released on both the App Store and Google Play.
• Offline-first architecture with local storage, queued writes, retries and conflict handling.
• Android performance tuning on low-end devices, focusing on startup time and memory usage.
• Daily use of Cursor, Claude Code or similar AI coding tools with TypeScript, automated tests and CI around it.
• Excellent written and spoken English for PR descriptions, risk notes and tradeoff explanations to a client team.
• Experience working from written acceptance criteria and the ability to push back on merges that miss them.

Responsabilidades

• Set up Apple and Google developer accounts, signing, CI builds and testing tracks.
• Build the local storage, write queue and retry logic for offline work.
• Agree sync and upload APIs with backend developer and decide conflict resolution.
• Implement phone-number sign-in with SMS codes and push notifications that fall back to SMS.
• Build camera capture and e-signature flows with versioned records.
• Measure startup time, memory usage and app size on low-end Android devices.
• Handle store submissions, privacy disclosures and monitor crashes/sync issues.

Conocimientos

English communication

React Native

Herramientas

TypeScript

CI/CD

Cursor/Claude Code

Descripción del empleo

Alpha Efficiency seeks an experienced mobile engineer to own offline-first iOS/Android app development in a fully remote LATAM contract. You will start from project setup, manage the write queue, sync, releases and tests, and own the app through public launches on App Store and Google Play alongside a backend counterpart.

You bring 4+ years building mobile apps with React Native, offline-first architecture, performance tuning for low-end Android devices, and a strong habit of writing tests, CI,