Freelance Mobile App Developer (iOS / Android)

Role Overview

Freelance Mobile App Developer to join the Tendem project at Mindrift, building native and cross-platform mobile applications for iOS and Android. This is a part-time remote opportunity focused on shipping stable, performant, and user-friendly apps.

Responsibilities

• Design, build, and refine mobile applications across categories (e.g., utilities, fitness/wellness, games, productivity, delivery, content) for iOS, Android, or both
• Build with React Native, Flutter, Swift (iOS), or Kotlin (Android)
• Create responsive UIs following 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 when required (in-app purchases, ads, subscriptions)
• Review, debug, optimize, and refactor for correctness, performance, battery efficiency, and maintainability
• Resolve platform-specific issues and prepare builds for distribution (TestFlight, Play Console)

Requirements

• At least 3 years of relevant mobile app development experience
• Hands-on experience with at least one of:
  • React Native
  • Flutter
  • Swift / SwiftUI (iOS)
  • 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 app store submissions
• Portfolio of shipped mobile apps (App Store / Google Play links preferred)
• English proficiency: B2 (Upper-intermediate) or above

Nice-to-haves

• Experience implementing in-app purchases, ads, or subscriptions
• Familiarity with backend services such as Firebase, Supabase, or similar
• Bachelor’s or Master’s degree in a relevant technical field

Project Logistics & Compensation

• Estimated effort: 10–20 hours/week during active phases
• Compensation: up to $60/hour equivalent depending on level and pace of contribution