Hiring a Gtk developer is beneficial for creating high-quality, efficient graphical user interfaces for desktop applications. They have expertise in utilizing the Gtk toolkit, which supports a variety of languages and platforms, enhancing cross-platform compatibility. Their skills can contribute to effective application design and better user experience, ensuring your software is intuitive and user-friendly. Moreover, Gtk developers often have a strong understanding of broader software development principles, meaning they can contribute to various aspects of your project, improving overall productivity and quality.