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Freelance Mobile App Developer (iOS / Android)

6 days, 14 hours ago
Spain
Freelance
Mid Level
Mobile Engineer
Mobile Development
Android Firebase Flutter iOS Jetpack Compose Kotlin React Native REST API Supabase Swift SwiftUI
Apply Now
Mindrift.ai: Be the “I” in AI

Mindrift.ai: Be the “I” in AI

Join 10,000+ experts earning $15-50/hr training AI models remotely. Flexible freelance work, weekly payments. No AI experience required. Apply in 5 minutes.

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 where 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 on TestFlight and Google Play Console.
  • Refine mobile applications to ensure they are stable, performant, and ready for real users on real devices.

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 a related technical field is a plus.
  • 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 async 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.
  • Strong attention to detail, performance awareness, and the ability to work independently.

Benefits

  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Earn up to $50 per hour equivalent, depending on contribution level and pace.
  • Participate in performance-based bonus programs for high-quality work and consistent delivery.
  • Gain hands-on experience in a hybrid environment combining human expertise and AI agents.
  • Join a freelance project with flexible weekly time expectations of around 10–20 hours during active phases.

Interested in this position?

Apply directly on the company website

Apply Now

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