Hi,
I read your description carefully and understand your requirements fully.
Being a senior Xamarin app developer having expertise C#, Visual Studio, Xaml, .Net, API’s, Back-end & graphic design, I can better help you to complete app tasks using these platforms.
I have already developed and published 50 + mobile apps to the mobile market.
If you find me suitable for this work please ping me on chat for further details.
Thanks