Freelance Mobile App Developer (iOS / Android)
Mindrift is looking for skilled Mobile App Developers (React Native, Flutter, Swift, or Kotlin) to join the Tendem project and build native and cross-platform mobile applications for real-world use cases.
What We Do
The Mindrift platform connects specialists with innovative technology projects. Our mission is to help develop high-quality AI technologies by combining real-world expertise from professionals across the globe with advanced AI development efforts.
About The Role
This is a freelance role for the Tendem project. As a Mobile App Developer, you'll design, build, and refine mobile applications across categories such as utilities, fitness/wellness, games, productivity, delivery, and content apps — for iOS, Android, or both, using native or cross-platform frameworks.
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)
- 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 (TestFlight, Play Console)
Qualifications
- At least 3 years of relevant experience in mobile app development (required)
- Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus
Educational and Professional Experience
Candidates should have a strong foundation in mobile application development, platform-specific UI/UX patterns, and building stable, high-quality mobile experiences for iOS and Android. We are looking for specialists who can confidently work with native or cross-platform frameworks, integrate device APIs and backend services, and build production-ready mobile applications. Strong attention to detail, performance awareness, and the ability to work independently are essential.
Skills
- 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
Additional Requirements
- Strong attention to detail and commitment to performance, stability, and platform polish
- Self-directed work ethic with the ability to ship complete mobile features independently
- Portfolio of shipped mobile apps (required, with App Store / Google Play links preferred)
- English proficiency: Upper-intermediate (B2) or above (required)
Project Time Expectations
For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.
Pay
On this project, contributors can earn up to $60 per hour equivalent, depending on their level and pace of contribution. Compensation varies across projects depending on scope, complexity, and required expertise.
Why This Opportunity Might Be a Great Fit
- Work fully remote on your own schedule with just a laptop and stable internet connection
- Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform
- Participate in performance-based bonus programs that reward high-quality work and consistent delivery