Responsive Shopify E-Commerce Website -- 2

I need a seasoned web developer to turn my business concept into a fully-functional Shopify store. The site must be lightning-fast, intuitive to browse on any device, and follow modern best practices in HTML, CSS, and JavaScript for clean, maintainable code. My core requirements are straightforward: • Build the store on Shopify, configuring themes or custom sections so the layout looks sharp on phones, tablets, and desktops. • Hook up PayPal as the initial payment gateway and confirm that checkout flows smoothly from cart to confirmation. • Apply on-page speed optimisations—image compression, asset minification, and smart loading techniques—so page-load scores stay high. • Provide a simple hand-over guide (or brief video) so I can manage products, track orders, and update content without touching code. If you have a proven track record with Shopify plus solid front-end skills, I’m ready to get started right away.