Freelance Mobile App Developer (iOS / Android)

<p>Mindrift is looking for skilled <strong>Mobile App Developers (React Native, Flutter, Swift, or Kotlin)</strong> to join the Tendem project (<a href="https://tendem.ai/" rel="nofollow ugc noopener" target="_blank">https://tendem.ai/</a>) and build native and cross-platform mobile applications within our hybrid AI + human environment. In this role, as an AI Pilot – that's how we refer to this position at Mindrift – you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide mobile engineering expertise, platform-specific judgment, and quality control to ensure apps are stable, performant, and ready for real users on real devices. This part-time remote opportunity is ideal for professionals with hands-on experience shipping iOS and/or Android apps, working with platform APIs, and handling the full mobile development lifecycle. </p><p></p><p><strong>What We Do </strong></p><p>The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.</p><p></p><p><strong>About the Role</strong> </p><p>This is a freelance role for a 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. </p><p></p><p><strong>Key Responsibilities</strong></p><ul><li>Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android).</li><li>Implement responsive mobile UIs that follow platform conventions (iOS HIG, Material Design).</li><li>Integrate native device features (camera, push notifications, location, storage, biometrics).</li><li>Connect apps to backend APIs, handle offline state, caching, and synchronization.</li><li>Implement monetization features where required (in-app purchases, ads, subscriptions).</li><li>Evaluate AI-generated mobile code and refactor it for correctness, performance, battery use, and maintainability.</li><li>Debug platform-specific issues and prepare builds for distribution (TestFlight, Play Console).</li></ul><p></p><p><strong>Requirements and benefits</strong></p><ul><li><strong>At least 3 years of relevant experience</strong> in mobile app development (required).</li><li><strong>Bachelor's or Master's Degree</strong> in Computer Science, Engineering, Information Technology, or related technical fields is a plus.</li><li>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 refine AI-assisted output into production-ready mobile applications. Strong attention to detail, performance awareness, and the ability to work independently are essential.</li><li>Hands-on experience with at least one of: React Native, Flutter, Swift/SwiftUI (iOS), or Kotlin/Jetpack Compose (Android).</li><li>Solid understanding of mobile UI patterns, navigation, state management, and platform guidelines.</li><li>Experience integrating REST APIs, handling async data, and managing local storage.</li><li>Familiarity with native device APIs (notifications, camera, location, storage, biometrics).</li><li>Experience with mobile build tools, code signing, and submission to App Store / Google Play.</li><li>Experience implementing in-app purchases, ads, or subscriptions is a plus.</li><li>Familiarity with backend services such as Firebase, Supabase, or similar is a plus.</li><li>Strong attention to detail and commitment to performance, stability, and platform polish.</li><li>Self-directed work ethic with the ability to ship complete mobile features independently.</li><li>Portfolio of shipped mobile apps (required, with App Store / Google Play links preferred).</li><li>English proficiency: Upper-intermediate (B2) or above (required)</li></ul><p></p><p><strong>Project time expectations </strong></p><p>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. </p><p></p><p><strong>Compensation </strong></p><p>On this project, contributors can earn up to <strong>$60 per hour equivalent</strong>, depending on their level and pace of contribution. </p><p>Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.</p><p></p><p><strong>Why this freelance opportunity might be a great fit for you? </strong></p><ul><li>Work fully remote on your own schedule with just a laptop and stable internet connection. </li><li>Gain hands-on experience in a unique hybrid environment where human expertise and AI agents collaborate seamlessly — a distinctive skill set in a rapidly growing field.</li><li>Participate in performance-based bonus programs that reward high-quality work and consistent delivery.</li></ul>