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Freelance Mobile App Developer (iOS / Android)

4 days, 13 hours ago
United States
Freelance
Junior
Mobile Engineer
Mobile Development
Android Firebase Flutter iOS Jetpack Compose Kotlin React Native REST API Supabase Swift SwiftUI
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Description

  • Build mobile applications using React Native, Flutter, Swift, or Kotlin.
  • Implement responsive user interfaces that follow iOS and Android platform conventions.
  • Integrate native device features such as camera, push notifications, location, storage, and biometrics.
  • Connect mobile apps to backend APIs and manage offline state, caching, and synchronization.
  • Implement monetization features such as in-app purchases, ads, and subscriptions when needed.
  • Review AI-generated mobile code and refactor it for correctness, performance, battery efficiency, and maintainability.
  • Debug platform-specific issues and prepare app builds for distribution through TestFlight and Google Play Console.
  • Design, build, and refine mobile applications across iOS, Android, or both.
  • Work independently to ship complete mobile features within the project workflow.

Requirements

  • At least 3 years of relevant experience in mobile app development.
  • Hands-on experience with at least one of the following: React Native, Flutter, Swift/SwiftUI, or Kotlin/Jetpack Compose.
  • Strong understanding of mobile UI patterns, navigation, state management, and platform guidelines.
  • Experience integrating REST APIs, handling asynchronous data, and managing local storage.
  • Familiarity with native device APIs such as notifications, camera, location, storage, and biometrics.
  • Experience with mobile build tools, code signing, and submission to the App Store or 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 is required, with App Store or Google Play links preferred.
  • English proficiency at upper-intermediate (B2) level or above is required.
  • Bachelor's or Master's degree in Computer Science, Engineering, Information Technology, or a related technical field is a plus.

Benefits

  • Fully remote work on your own schedule with only a laptop and stable internet connection.
  • Project-based freelance engagement with an estimated 10–20 hours per week during active phases.
  • Compensation of up to $60 per hour equivalent, depending on contribution level and pace.
  • Performance-based bonus programs for high-quality work and consistent delivery.
  • Opportunity to gain hands-on experience in a hybrid human-and-AI working environment.

Interested in this position?

Apply directly on the company website

Apply Now

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