Senior React Native (Expo) iOS Engineer

Senior React Native (Expo) iOS Engineer

App Store Launch Phase – Sports Tech App
Remote | Part-Time or Full-Time Contract

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About the Project

We are building COMBINE, a mobile athlete performance app. Athletes record drills (vertical jump, acceleration, etc.) and generate performance metrics.

The core product is built.
We are now in the polish + App Store launch phase.

We need an experienced React Native engineer to help us finish strong and get the app successfully into the Apple App Store.

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IMPORTANT – Read Before Applying

This is not a junior role.

You must have:
• Real React Native experience (not just React web)
• Experience with Expo
• Experience building and deploying iOS apps
• Experience using EAS Build
• Experience handling provisioning profiles and certificates
• At least one app successfully published to the App Store

If you have not shipped an iOS app before, please do not apply.

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Responsibilities
• Fix and stabilize Expo EAS build pipeline
• Resolve iOS build errors
• Prepare and push TestFlight builds
• Ensure App Store compliance (permissions, privacy, etc.)
• Improve UI polish (layout precision, shadows, card components, performance)
• Improve animation smoothness and responsiveness
• Clean up technical debt from MVP iteration

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Tech Stack
• React Native
• Expo (EAS Build)
• TypeScript
• Node / Express backend
• PostgreSQL

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Required Skills
• 3+ years React Native experience
• Strong understanding of iOS deployment process
• Experience debugging native module conflicts
• Comfortable working with an existing codebase
• Strong attention to UI detail
• Clear communication

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Bonus Skills
• Experience with motion sensors (accelerometer, gyroscope)
• Experience with Reanimated
• Experience with performance optimization
• Sports/fitness app experience

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Work Details
• 20–40 hours per week
• Long-term potential if successful

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How to Apply (Required)

To be considered, include:
1. Links to iOS apps you personally shipped
2. Brief explanation of your role in those apps
3. Your experience with Expo + EAS
4. Your hourly rate
5. Your availability
6. The word “EAS READY” at the top of your application (to confirm you read this)

Applications without this information will not be reviewed.

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