Engaging Desktop UI Designer Needed

I am looking for a UI designer to create an engaging desktop interface with the primary goal of increasing user engagement. The design should incorporate the following functionalities:

- User registration/login: A seamless and intuitive process for users to sign up and log in to the platform.
- Search functionality: A powerful search feature that helps users navigate through the content or products available on the platform.
- Product catalog: An organized and visually appealing catalog of products that entices users to explore and possibly make a purchase.

The ideal candidate for this project should have:
- Proven experience in designing engaging user interfaces, specifically for desktop platforms.
- Strong understanding of user experience principles and how to apply them to drive engagement.
- Proficiency in creating intuitive registration/login processes, search functionalities, and product catalogs.

Your design should not only be aesthetically pleasing but also functional and user-friendly. Please provide examples of your previous work that demonstrate your ability to create engaging UI designs that drive user engagement.