Shopify Wholesale Portal Completion

I'm looking for an experienced Shopify developer to complete the customer-facing portion of an existing wholesale portal for my Shopify store. Important: The backend has already been built. I am not looking to rebuild the wholesale system from scratch... (Budget: $750 - $1500 USD, Jobs: CSS, HTML, JavaScript, Shopify, Shopify Development, UI / User Interface, UX / User Experience, Web Design)