Senior Flutter Developer for API Integration and publishing mobile app in Google Play and Apple Store

I'm seeking a senior Flutter developer to integrate REST APIs into a system. The project uses Flutter, Clean Architecture, Dio, Flutter Modular, Provider, Get It, and Sizer.

The APIs will interact with:
- User authentication
- Data fetching and display
- Payment processing

Requirements:
- Proven experience with Flutter and the specified technologies
- Expertise in REST API integration
- Ability to work with well-documented API resources

Ideal Skills:
- Strong background in Clean Architecture
- Proficient with Dio and state management using Provider
- Familiarity with Flutter Modular and Sizer

Please provide examples of similar work done and your approach to ensure smooth integration.