Shopify E-Commerce App With Search

I need a fully functional e-commerce web app built on Shopify. The core of the project is to design and configure a storefront that feels modern, loads quickly, and scales easily as my catalogue grows. My must-have feature is a robust, advanced search so shoppers can filter by attributes such as size, color, price range, and availability without delay. If you have experience integrating or custom-coding advanced search solutions within Shopify’s ecosystem—whether through Liquid, Shopify APIs, or a well-chosen app—this project should be straightforward for you. The final hand-off should include: • A polished, mobile-responsive theme customised to my brand • The advanced search in place, tested on at least 30 sample products • Clear instructions (or a quick Loom video) showing me how to manage products and tweak search settings on my own I’ll supply logos, brand colours, and product data as soon as we start. Let me know your timeline and any previous Shopify stores you’ve equipped with advanced search so I can gauge fit.