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Senior React & TypeScript Mobile Developer (Offline-First iOS/Android)

BairesDev • Argentina
Full Remote
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Key Highlights
Fully remote contractor role from LATAM, full-time (~40 hours/week)
Core hours overlap with US time zones (lead developer and backend developer)
Ownership of one app from project setup to public release on both stores
Key Responsibilities
Set up developer accounts, CI/CD pipelines, and testing tracks for iOS and Android
Develop offline-first features including local storage, write queues, and retry logic
Define and implement sync and upload APIs in collaboration with backend developers
Build sign-in with SMS codes, push notifications with SMS fallback, and e-signature flows
Optimize app performance on low-end Android devices
Handle app submissions, privacy disclosures, and monitoring for crashes and sync failures
Technical Skills Required
React Native TypeScript Offline-first mobile development
Benefits & Perks
Full-time remote contractor role with flexible hours
Ownership of app development lifecycle from setup to release
Collaboration with AI coding tools in daily workflow
Nice to Have
Experience with in-app e-signature/document flows
Applications built for field/frontline/hourly workers
Localized applications or Spanish interface testing
Backend development experience (endpoints, database migrations)
Crash reporting or sync monitoring setup and usage

Job Description

Our client is a remote product studio that builds MVPs and custom software for startups and companies past the idea stage. Clients pay for each build, and a small team works in two-week sprints with AI coding tools used every day.

Your Role

You'll be the only mobile developer on a new offline-first iOS and Android app, starting from the first project setup. You'll set up Apple and Google developer accounts, build local storage, write queues, retry logic, and handle sync and upload APIs. You'll also write risk notes and tradeoffs directly to the client team.

You’ll:

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