Flutter Task Marketplace App Development

We have a live Task Marketplace App currently published on the Play Store. We are looking for an experienced Senior Flutter Developer to implement a major upgrade focused on Trust, Safety, and Efficiency.

This is not a ground-up build. You will be working with our existing codebase to integrate new modules, refine the commission logic, and improve the UI/UX.

Technical Requirements:

Framework: Flutter (Dart) for cross-platform development.
Backend: Firebase (Firestore, Auth, Cloud Functions)
State Management: Provider, Riverpod, or BLoC.
Architecture: Clean Architecture with SOLID principles.
Offline Support: The app must function partially offline for Taskers (viewing cached tasks) and sync data when connection returns.

Ideal Skills & Experience:

Proven experience in Flutter development with a portfolio of marketplace or logistics apps.
Strong understanding of Google Maps API and Geolocation services.
Experience integrating OCR SDKs (Google ML Kit) or Biometric authentication.
Familiarity with VoIP (Agora/Twilio) for in-app calling.
Experience building complex Commission/Escrow logic.
Knowledge of iOS (App Store) and Android (Play Store) deployment processes.

Deliverables:

Source code for the new modules.
Updated APK/IPA for internal testing.
Documentation on the new Commission logic and Verification rules.