Xamarin developers should know programming languages like Java, Kotlin & Swift to build applications. Moreover, they must be able to build mockups and identify different components for development.
The ideal candidate should be proficient in Xamarin and clearly understand its documentation to be able to fully utilize it. They must also be well-experienced in cross-platform development, with the ability to use Xamarin.Forms, Xamarin.Android, and Xamarin.iOS for creating reusable UI.
Furthermore, an ideal Xamarin developer must know how to utilize libraries to create native features for all end-to-end development.