Beyond being an experienced C# and .net developer I have experience with specific technologies that provide robust solutions for many projects.
I have extensive experience in both programming and designing in Unity. It offers build options for a very diverse range of targets from gaming consoles to WebGL. Not limited to games, it can be used for any graphically heavy project.
I also have extensive experience with Xamarin which is a proven technology for creating cross platform mobile apps with a single codebase.
A sample of my Unity related coding can be seen on my github