Shopify Website Optimization & Mobile Responsiveness

I am looking for an experienced Shopify developer to optimize my existing Shopify grocery website. The store is fully functional, but it needs professional refinement in terms of speed, responsiveness, and overall user experience.

Scope of Work:
• Full Shopify theme optimization (desktop, tablet, and mobile)
• Improve responsiveness across all devices
• Rework layout, spacing, product visibility, and UX flow
• Adjust design elements (fonts, pricing visibility, offers, banners) to match a professional German-standard grocery website
• Clean up and optimize HTML, CSS, and JSON sections where required
• Ensure smooth navigation, fast load times, and a polished look & feel

Requirements:
• Proven experience with Shopify theme customization
• Strong skills in Liquid, HTML, CSS, JavaScript, and JSON
• Understanding of responsive design principles
• Ability to deliver a clean, fast, user-friendly interface
• Must be responsive and able to communicate clearly

Additional Notes:
The store is already built. This project focuses purely on optimization, not new development.

If you have relevant Shopify projects in your portfolio, please share them. I’m looking for someone who can start immediately and deliver high-quality work.