EXPERT Full stack developer (NO COMPANIES) C#, .NET, MySQL, for webapp

Need to add new features to existing webapp app (runs in browser) in .NET MVC using MySQL

Please no companies for this project -- ONLY solo developers

* Must be an EXPERT in complex data structures, classes, front-end
* Expert in performance tuning
* We want to convert certain feature in app to offline
* Add QR code reader in browser
* Camera integration in browser to take photos of members

Added plus:
* Azure DevOps, CI/CD pipeline setup
* Creating automated test software
* Financial accounting knowledge
* Data encryption / decryption technologies