Freelance Mobile App Developer (iOS / Android)
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Key skills for this role
About the Role
Mindrift seeks a skilled Mobile App Developer for a freelance role on the Tendem project, building native and cross-platform mobile apps using React Native, Flutter, Swift, or Kotlin.
Key Skills for This Role
Responsibilities
- Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android)
- Implement responsive mobile UIs that follow platform conventions (iOS HIG, Material Design)
- Integrate native device features (camera, push notifications, location, storage, biometrics)
- Connect apps to backend APIs, handle offline state, caching, and synchronization
- Implement monetization features where required (in app purchases, ads, subscriptions)
- Evaluate AI generated mobile code and refactor it for correctness, performance, battery use, and maintainability
- Debug platform specific issues and prepare builds for distribution (TestFlight, Play Console)
Requirements
- At least 3 years of relevant experience in mobile app development
- Hands on experience with at least one of: React Native, Flutter, Swift/SwiftUI, or Kotlin/Jetpack Compose
- Solid understanding of mobile UI patterns, navigation, state management, and platform guidelines
- Experience integrating REST APIs, handling async data, and managing local storage
- Familiarity with native device APIs (notifications, camera, location, storage, biometrics)
- Experience with mobile build tools, code signing, and submission to App Store / Google Play
- Portfolio of shipped mobile apps with App Store / Google Play links
- English proficiency: Upper intermediate (B2) or above
Full Job Posting
About the Role
- Freelance role for the Tendem project building mobile applications across categories such as utilities, fitness/wellness, games, productivity, delivery, and content apps.
- Collaborate with Tendem Agents that handle repetitive tasks while providing mobile engineering expertise and quality control.
Key Responsibilities
- Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android).
- Implement responsive mobile UIs that follow platform conventions (iOS HIG, Material Design).
- Integrate native device features (camera, push notifications, location, storage, biometrics).
- Connect apps to backend APIs, handle offline state, caching, and synchronization.
- Implement monetization features where required (in app purchases, ads, subscriptions).
- Evaluate AI generated mobile code and refactor it for correctness, performance, battery use, and maintainability.
- Debug platform specific issues and prepare builds for distribution (TestFlight, Play Console).
Requirements
- At least 3 years of relevant experience in mobile app development.
- Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus.
- Hands on experience with at least one of: React Native, Flutter, Swift/SwiftUI (iOS), or Kotlin/Jetpack Compose (Android).
- Solid understanding of mobile UI patterns, navigation, state management, and platform guidelines.
- Experience integrating REST APIs, handling async data, and managing local storage.
- Familiarity with native device APIs (notifications, camera, location, storage, biometrics).
- Experience with mobile build tools, code signing, and submission to App Store / Google Play.
- Experience implementing in app purchases, ads, or subscriptions is a plus.
- Familiarity with backend services such as Firebase, Supabase, or similar is a plus.
- Portfolio of shipped mobile apps (required, with App Store / Google Play links preferred).
- English proficiency: Upper intermediate (B2) or above (required).
Compensation
- Contributors can earn up to $60 per hour equivalent, depending on level and pace of contribution.
- Project tasks estimated around 10–20 hours per week during active phases.
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