Senior UX/UI Designer for Shopify

I need a senior UX/UI designer for a brand-new live-commerce website (built on Shopify) for a premium gold and silver brand. This is UX and UI work, not just visual design. You'll shape the user experience — flows, structure, navigation and interaction — as well as the high-fidelity UI across all pages, desktop and mobile. The site is live-selling first: on-site live video shows are the hero of the experience, not a banner. I'll provide mobile-first wireframes, a desktop homepage reference, brand guidelines and a full page list. Your role is to critique and pressure-test the UX, then design the complete UI on top of it. Key needs: a dark, premium aesthetic with refined accents; tasteful animations and micro-interactions; strong trust and credibility cues throughout; and a scalable design system that handles many simultaneous live streams across multiple countries, with country switching/toggling that works cleanly on mobile. Looking for someone with a strong portfolio in premium e-commerce or DTC — ideally with live-commerce, video or marketplace experience — who designs as a scalable system, not one-off screens. Figma is our working tool. Clear references, an engaged decision-making team, and potential for ongoing work as the site grows.