Flutter/ionic-Built Multi-Service Customer App(web/android/ios) -- 2

In need of a capable developer to construct a multi-service application with the technology Flutter (any other). This app is to be web, android and iOS compatible. Emphasized features consist of:

1. Customer Login:
- View service /select service
- select service date and time
- locality selection
- select vendors
- view vendors rating
- service rating for vendors
- Customers account management
- Support requests

2. Vendor Login:
- order alerts / notifications
- Create services
- working days/ hours
- vendor account management

3. Admin Login;
- Vendor account management
- customers account management
- service requests management
- Rating management
- Support requests management.

experience in building similar application is preferrable.