web application need some fixes -looking for a fullstack developer with .Net, react,Azure,Nextjs

I have a small commercial web application completed(80%) but need some fixes and enchancements to be done.
The tech stack we have is:
Asp.net core for Backend
Mssql server database
Signalr for real-time
Stripe for payment
Azure blob for storage
Nextjs for frontend
React

The ask here is:
1. update the bugs
2. make enhancement on payment gateway
3.setup CI/CD
4.optimize the Azure or cloud cost
5. enhance the security
6. add new features and develop code
7. mobile app development is in progress, need to complete the leftover

I am an architect with good understanding of business usecases and technical knowledge, but don't find time to complete this task

I need someone with good listening skills on technical requirement and patent to redo, enchance, scrap and build any kind of work.