Do RESTFUL by ASP.NET core + entity framework MVC with XAMARIN ANDROID and IOS

Hello everyone, I am looking for a good job and good price . and please read my requirement clearly then chat me . I have two databases (sql server and mysql) on hosting > again 2 databases. each database has two tables > first table's name = users (userid, username, useraddress) the field userid AUTO_INCREMENT the second table's name = images (imageid, imagename, image, userid) the field image = Image or Blob, imageid = AUTO_INCREMENT and userid take it from users table (first one) I need someone to do RESTFUL by ASP.NET core + entity framework MVC with XAMARIN ANDROID + IOS Very easily almost one controler that work fine with any databases and response JSON format In XAMARIN will do two activities > android + ios apps. each app connect with database once sql server and another mysql for android + ios first acivity has two edittexts one for username and another for useraddress, insert username and useraddress after click insert button insert the data in the table users, then take the userID for current user and display the second activity the second activity has two edittexts also one for imagename and another for userid the edittext for userid just display from first activity and imageview to select the image from gallery and write image name then click insert button to insert data maybe one or two or many images for a user to images table . (Attention to security and speed in dealing with the server) any question you can ask me >