New website design.. make changes to existing site.

I am looking for a skilled web designer who can help me with two tasks: redesigning an existing WordPress site and launching a new online retail platform using Wix. My primary goal is to improve user experience and increase conversion rates. For the website redesign, I need someone who can focus on functionality and features, particularly e-commerce integration. I am open to suggestions for specific features, but my main priority is to make it easy for customers to purchase products online. Ideal skills for this project include web design, e-commerce, and user experience.