Home-Services Mobile Application Development

Job Description:
I am looking for an experienced Flutter developer to build a complete home-services mobile application.
The app will allow customers to browse home services, select a service, choose a date and time, add their address, and book a service provider.
Required features:
Customer registration/login with OTP
Home screen with service categories
Electrician, plumber, AC repair, cleaning, painting and carpenter services
Service details and pricing
Address and location
Date and time slot selection
Booking and order management
Booking status tracking
Customer profile and order history
Service provider system
Provider availability and booking acceptance
Ratings and reviews
Push notifications
Firebase Authentication
Firebase Firestore database
Firebase Storage
Admin panel
Service, provider, customer and booking management
Development requirements:
Flutter for the mobile application
Firebase for the backend
Clean and scalable code
Responsive and professional UI
Proper security rules
Complete source code must be provided
Firebase project and source-code ownership will remain with me
Important:
I want the project to be developed in phases. First, I want the main UI screens/prototype completed and reviewed. After approval, the Firebase backend and other functionality can be integrated.