Hello sir,
As per your requirement:-
1. Azure App center push notifications
Configure it - should be up and running in half an hour.
2. Add these 3 custom properties in the X a m a r i n demo project.
Hobby, Country, Username
3. Consume the App Center API in a demo 1 page asp.net MVC
I can make successful your work. I have well knowledge of .net, html, mvc, xamarin, css.
would you please leave me a message for further?
TIA