Service E-Commerce Website Build

I want to launch a full-featured e-commerce website dedicated to selling my professional services online. The site should feel modern, work flawlessly on mobile, and make it simple for visitors to browse my service packages, add them to a cart, and pay securely... (Budget: $250 - $750 USD, Jobs: eCommerce, HTML, Shopify, Shopping Cart Integration, Web Development, Website Design, WooCommerce, WordPress)