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Freelance Mobile App Developer (iOS / Android)

1 day, 6 hours ago
Japan, New Zealand, Singapore, South Korea
Freelance
Mid Level
Mobile Engineer
Software Development
Android Firebase Flutter iOS Jetpack Compose Kotlin React Native REST API Supabase Swift SwiftUI
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Internet Software & Services
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Description

  • Build mobile applications using React Native, Flutter, Swift, or Kotlin.
  • Design responsive mobile 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 usage, and maintainability.
  • Debug platform-specific issues and prepare app builds for distribution through TestFlight and Google Play Console.
  • Work independently to ship complete mobile features and production-ready mobile applications.

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.
  • 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 and 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.

Benefits

  • Work fully remote on your own schedule.
  • Part-time workload of around 10–20 hours per week during active project phases.
  • Compensation 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 work in a hybrid environment combining human expertise with AI agents.
  • Laptop and stable internet connection are the main equipment requirements.
  • Potential to gain experience in a growing AI-assisted mobile development workflow.

Interested in this position?

Apply directly on the company website

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