Flutter Cashback App Development

I'm seeking a skilled Flutter developer to create a mobile app that rewards users with cashback in the form of gift cards or vouchers after shopping at partner grocery stores.

Key Requirements:
- The app must support both iOS and Android platforms.
- Essential features include:
- User registration/login
- Partner store locator
- Cashback tracking

Ideal Skills and Experience:
- Proficiency in Flutter development
- Experience with mobile app development for both iOS and Android
- Familiarity with cashback or rewards systems
- Strong UI/UX design skills to ensure a user-friendly experience
- Experience with secure user authentication and data protection

Please provide samples of similar work.