Hello there!
I have read your project description about flutter developer for develop your ios and android app using flutter and I have build many apps I will show you in personal chat so let's have quick chat.
I have 3 years + experience in flutter and 5 years+ experience in mobile app development I work professionally with the use of BLOCK PATTERN, PROVIDER, STATE MANAGEMENT, FIREBASE, GETX, MOBX, In app purchase Socket-API, REST-API, Graph-QL and also Maintain Code Structure with MVP, MVVM as per requirements
If I sound like a good fit, feel free to get in touch.
Kind Regards