Looking for Xamarin developer for ui changes.

I am looking for a Xamarin developer who can help me with UI changes for my mobile app. The changes required are simple and the app needs a complete makeover. I have specific design preferences and examples that I would like the developer to follow. The deadline for completing the UI changes is one week. Ideal skills and experience for the job include proficiency in Xamarin development, knowledge of UI/UX design principles, and experience in app redesign and development.