Fuetime skills posted app

I need an experienced Flutter developer to build an Android app for my app FueTime, using our complete Flask backend hosted on AWS.

The app will include:
- User authentication and profile management
- Real-time updates via WebSocket
- User-generated content interaction (posts, updates)
- In-app messaging/chat features

I will provide:
- API access
- Full support

Ideal Skills & Experience:
- Proficiency in Flutter and Dart
- Experience with WebSockets and real-time data
- Strong background in backend integration, especially with Flask
- Familiarity with AWS services
- Prior experience in developing messaging/chat functionalities within apps

Please share your portfolio, estimated cost, and time. Looking to start immediately.