What is this about:
development of Xamarin libraries in C# for handling the device cameras - in iOS and Android - and processing taken images using open source libraries possibly written in C/C++ or C#.
You will not be supposed to write the processing libraries. You will be supposed to use existing ones.
GitHub usage for native renderers written for iOS and Android.
You have following qualifications:
1+ year experience with mobile application development under Xamarin, native Android, and iOS.
Knowledge of Xamarin Forms is a plus but you can handle it after short time.
We use Git, Visual Studio 2017.