Flutter cross-platform app

We are building a cross-platform fitness-tracker app (iOS + Android) in Flutter and need an experienced developer to take it from designs to store-ready builds.

Scope

• Activity tracking, history and progress charts
• Offline-first data with background sync
• Authentication and cloud storage via Firebase
• Push notifications and reminders

Requirements

• Expert in Flutter and Dart
• Experience with Firebase (Auth, Firestore, Cloud Messaging)
• Solid state management (Riverpod, Bloc or similar)
• Published apps on both the App Store and Google Play

Nice to have

• Health platform integration (HealthKit / Google Fit)
• Automated testing and CI for Flutter

Engagement

Fixed-price, roughly 8–10 weeks. Designs and API are ready.