Refine Shopify Store UI

We are looking for an experienced Shopify developer with excellent UI/UX skills to improve our luxury gemstone e-commerce website.

Website:
https://lenix.shop

This is not a complete redesign. We already have a fully functional Shopify store and require a developer to improve the user interface, responsiveness and overall shopping experience while maintaining our premium luxury branding.

The developer must have strong experience with:

Shopify (Liquid)
HTML5
CSS3
JavaScript
Responsive Design
Mobile-first development
Performance optimisation
Luxury e-commerce UI/UX