Remote Senior Mobile Engineer - Offline-First (iOS/Android)

Miratech; Santa Fe Capital; Remote; ARS 85,158,000 - 149,026,000; Full time

Job summary

Unknown is seeking a senior mobile engineer to take ownership of an offline-first iOS/Android app from initial project setup through public launch on App Store and Google Play. You will be the sole mobile developer on the project, collaborating with a backend teammate, QA, and leadership to ensure reliable sync, local storage, and robust release processes.

Two-week sprints with feature bursts will rely on AI coding agents for initial drafts, while you review changes, add tests, and decide on

Qualifications

• 4+ years building mobile applications, including React Native, with apps released on both stores.
• Offline-first architecture with local storage, queued writes, retries, and conflict handling.
• Clear written and spoken English for client communications.
• Experience using AI coding tools (Cursor/Claude Code) in production.

Responsibilities

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

Skills

React Native

Offline-first development

AI coding tools

TypeScript

CI/CD

English communication

Tools

Cursor

Claude Code

Job description

Unknown is seeking a senior mobile engineer to take ownership of an offline-first iOS/Android app from initial project setup through public launch on App Store and Google Play. You will be the sole mobile developer on the project, collaborating with a backend teammate, QA, and leadership to ensure reliable sync, local storage, and robust release processes.

Two-week sprints with feature bursts will rely on AI coding agents for initial drafts, while you review changes, add tests, and decide on