Hi,
I just read your project description and I have done similar project before.
I'm very skilled with JS frameworks & libraries such as Angular, React, Vue, and PHP frameworks such as Laravel/Codeigniter, plus C#/Asp.Net MVC, Asp.Net Core, Java backend development.
I'm very familiar with integrating payment gateways such as paypal, stripe, and 3th party sdk, backend apis.
I can complete your job perfectly.
And then I will provide maintenance for free.
I am ready to work for you now.
Of course, I can work with your time zone and you can contact to me feel free.
Kind Regards!
Kyryl.