Freelance Mobile App Developer (iOS / Android)

Mindrift is a platform that connects specialists with innovative technology projects to help develop high-quality AI technologies by combining real-world expertise from professionals with advanced AI development efforts. The role is for the Tendem project, focused on building native and cross-platform mobile applications for real-world use cases.

• 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 foundation in 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 app submission processes.
• Portfolio of shipped mobile apps with preferred App Store or Google Play links.
• English proficiency at Upper-intermediate (B2) or above.

Nice to have:

• Bachelor's or Master's degree in Computer Science, Engineering, IT, or related fields.
• Experience implementing in-app purchases, ads, or subscriptions.
• Familiarity with backend services like Firebase or Supabase.
• Strong attention to detail and commitment to performance, stability, and platform polish.
• Self-directed work ethic with ability to ship complete mobile features independently.

• Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android).
• Implement responsive mobile UIs following platform conventions such as iOS HIG and Material Design.
• Integrate native device features including camera, push notifications, location, storage, and biometrics.
• Connect apps to backend APIs, manage offline state, caching, and synchronization.
• Implement monetization features such as in-app purchases, ads, and subscriptions.
• Review, debug, optimize, and refactor mobile application code to improve correctness, performance, battery efficiency, and maintainability.
• Debug platform-specific issues and prepare builds for distribution via TestFlight and Play Console.