Freelance Mobile App Developer (iOS / Android)

Role Overview

Mindrift is seeking a Freelance Mobile App Developer for the Tendem project. You will build native and cross-platform mobile applications for iOS and/or Android, using frameworks such as React Native, Flutter, Swift, or Kotlin.

Responsibilities

• Design, build, and refine mobile apps across categories (utilities, fitness/wellness, games, productivity, delivery, content) for iOS, Android, or both
• Build mobile applications with React Native, Flutter, Swift (iOS), or Kotlin (Android)
• Create responsive UIs that follow platform conventions (iOS HIG / Material Design)
• Integrate native device features: camera, push notifications, location, storage, biometrics
• Connect 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 releases for distribution (TestFlight, Play Console)

Requirements

• 3+ years of relevant mobile app development experience (required)
• Hands-on experience shipping iOS and/or Android apps
• Strong understanding of mobile UI patterns, navigation, and state management
• Experience with REST APIs, async data handling, and local storage
• Experience with mobile build and release workflows (code signing, submitting to App Store / Google Play)
• Ability to work independently and ship complete mobile features
• Portfolio of shipped mobile apps (App Store / Google Play links preferred) (required)
• English proficiency: B2 or above (required)

Nice to Have

• Experience implementing monetization: in-app purchases, ads, subscriptions
• Familiarity with backend services such as Firebase or Supabase
• Knowledge of Kotlin + Jetpack Compose and/or SwiftUI (as applicable)

Project & Availability

• Estimated 10–20 hours/week during active phases (not guaranteed)

Compensation

• Up to $60/hour equivalent, depending on level and pace of contribution.