XAML can be used with a range of platforms, including Windows Presentation Foundation (WPF) and Universal Windows Platform (UWP), each with its own specific features and limitations. Look for XAML developers with experience working with both platforms and a strong understanding of the differences between them.
They should be able to explain how to leverage the unique features of each platform to develop high-performance, responsive user interfaces. Additionally, you may want to consider hiring programmers with proficiency as a C developer or .NET developer who have knowledge of ASP.NET MVC and have worked in full-time positions. Request code samples or a coding challenge to evaluate their abilities.