Android developer wanted who knows .NET ... C#

We need update existing app. Hey My app using native xamarin android with visual studio I need add 1. Historical check in reports of user (place a to place b etc time etc) trip reports.. automatic check-in 2. Drive behavior (overspeed, cornering, hardbreaks monitor km/hr) 3. Reskin design part of the app 4. Make sure the video call is working on my WoWonder app Prefer if u build locator tracking app before