Flutter POS App Modification

I'm seeking a Flutter expert to modify my existing POS app, which is built with Flutter and has a Laravel 10 backend.

Key Requirements:
- Ability to modify code across the entire app based on user feedback.
- Collaboration for long-term updates and enhancements.

Ideal Skills:
- Expertise in Flutter
- Experience with POS applications
- Strong problem-solving skills
- Ability to implement user feedback effectively

Looking forward to a developer who can partner with me for ongoing improvements.

Please only self developers apply , no companies or middle agents.
I need a developer for long term for this app.