Flutter and Laravel

I am looking for a developer who can Add in-app payment
-apple pay in flutter
-apple pay in Laravel
-Correct errors such as internet server error
-Improve application performance and speed up the application
- Adding fees for payment upon receipt and specifying the cities that we specify to make payment upon receipt
- Adding an option to add products. The product accepts payment upon receipt or does not accept it
-Shipping fees are different Riyadh, and it has a special price outside Riyadh
-Merge new update with old code
Laravel and flutter
fee for Pay cash on delivery
free shipping if total price we will select amount from backend


Primary functionality:
The primary functionality of the app will be centered around e-commerce, so the developer should have experience .

Project deadline:
The project deadline is flexible, but I would like the app to be completed within 4-6 days.

Communication:
The developer should be able to communicate effectively and provide regular updates on the progress of the project.