Flutter Medical App Development

I need a Flutter developer to create an Android and iOS app for my medical business. The app should help us efficiently manage various aspects of our operations.

Key Features:
- Manage Stock
- Manage Client (with Client Profiles)
- Manage Order
- Manage Invoice

Client Profiles should include:
- Payment History

Ideal Skills and Experience:
- Expertise in Flutter development for both Android and iOS platforms
- Experience in building complex data management apps
- Strong understanding of integrating secure payment history features
- Good UI/UX design skills to ensure a user-friendly experience

Please share your portfolio with your bid.