Senior React Native Mobile Engineer - Remote (LATAM)

Coderio; Santa Fe Capital; Remote; ARS 107,614,000 - 169,108,000; Full time

Benefits offered by this job

Fully remote LATAM contractor

US hours overlap

One app to own from first files to app

AI coding agents with CI and automated

Job summary

Tether is seeking a Mobile Engineer - React Native for a fully remote role. You will own the Keet Mobile app on iOS and Android, building features end-to-end in a fast-paced, remote team. Experience with React Native, Expo, and P2P components is essential.

You will collaborate with design and backend teams, implement push notifications, optimize performance on real devices, and ensure code quality with unit tests and CI. Strong English communications are required.

Qualifications

• 4+ years building mobile applications, including React Native apps released on App Store and Google Play.
• Offline-first work with local storage, queued writes, retries and conflict handling.
• Performance tuning on low-end Android devices and across real devices.
• Daily use of AI coding tools with TypeScript, automated tests and CI workflows.
• Clear written and spoken English for PRs, risk notes and tradeoffs with clients.
• Experience working from written acceptance criteria.

Responsibilities

• Build and polish features across chat, voice and video calls, media sharing, device pairing and identity backup
• Integrate native platform capabilities such as push notifications, camera, biometrics and background tasks on iOS and Android
• Profile and optimise performance on real devices, including startup time, long chats, media handling, battery and network use
• Write unit and end-to-end tests, and help keep releases stable through CI and crash reporting
• Work closely with the core P2P, design and product teams, and review code with a high bar for quality
• Significant experience with React Native, Redux for state management and Redux-Saga
• Experienced with WebSockets, RESTful based APIs
• Knowledge in native languages (Swift/Kotlin) and familiarity with native build tools (Xcode/Android Studio)
• Experience working with a remote team
• Interested in modernizing and optimizing different mobile or web applications
• Bonus points if you have any built something amazing on any p2p frameworks

Skills

React Native

Mobile development

TypeScript

CI/CD

Tools

Redux

Redux-Saga

WebSockets

REST APIs

Expo

Xcode

Android Studio

Job description

Tether is seeking a Mobile Engineer - React Native for a fully remote role. You will own the Keet Mobile app on iOS and Android, building features end-to-end in a fast-paced, remote team. Experience with React Native, Expo, and P2P components is essential.

You will collaborate with design and backend teams, implement push notifications, optimize performance on real devices, and ensure code quality with unit tests and CI. Strong English communications are required.