Flutter CRUD & API Integration

I need a skilled Flutter developer to integrate several CRUD operations and APIs into my existing Flutter project with a Node.js backend.

Key Requirements:
- Implement CRUD operations for:
- Device and Template (with media upload: images, videos, documents)
- Display message records (GET)
- Integrate Sign In/Sign Up using Clerk with Flutter SDK
- Support for submitting app updates to Play Store

The project is well-defined with mockups and designs ready. Ideal candidates should have:
- Strong experience with Flutter and Node.js
- Proficiency in API integration
- Familiarity with Clerk authentication
- Experience with Play Store submission

Please provide samples of similar work done.