UI/UX Audit and Refinement for Existing Website

I’m looking for a skilled UI/UX designer to audit an existing client-facing website and identify specific areas needing improvement. The site is already substantially built, so this is not a complete redesign or a project starting from scratch... (Budget: $50 - $100 USD, Jobs: Graphic Design, HTML, User Interface / IA, UX / User Experience, Website Design)