Minimalist Flutter App Development

I'm looking for a proficient Flutter developer to create a minimalist styled app with key features such as user authentication via OTP, item listing, cart management, order placement, payment integration, and admin console for item management. Additionally, the app needs to integrate with specific 3rd party services, including other apps like petpooja/dotpe APIs, and Firebase.

Key Features:
1. Sign In/Sign Up with OTP Authentication
2. Listing of Items
3. Adding Items to Cart
4. Browsing Cart Items
5. Order Placement/Checkout
6. Payment Integration
7. 3rd Party Service Integration
8. Admin Console for Item Management
9. Firebase Integration
10. Other Miscellaneous App Features

Design: The app should have a minimalist design style - clean, simple, and functional, avoiding any unnecessary elements or distractions.

Language: The app will only require single language support, so no need for multi-language integration.

Budget: $300-350

Ideal Skills and Experience:
- Extensive experience with Flutter
- Proficient in integrating 3rd party services
- Prior experience with Firebase
- Excellent understanding of minimalist design principles
- Familiarity with payment methods integration
- Experience in developing admin consoles

The project is expected to be completed within 1-2 months. Project updates and deliverables will be provided bi-weekly.