Complete E-Commerce Web Application

I need a full-cycle build of an e-commerce web application, starting with UX wireframes and ending with a live, cloud-hosted site. The look must be modern and clean, so every screen—from the product gallery to the checkout flow—should feel streamlined and intuitive on both desktop and mobile.

Core scope
• Design: High-fidelity mock-ups, responsive layouts, and a coherent brand style that aligns with “modern and clean.”
• Development: Front-end (React, Vue, or similar), back-end (Node.js, Django, or comparable), relational database, and solid API architecture.
• Key feature: a reliable shopping cart and checkout system with real-time price updates, multiple payment gateways, and confirmation emails.
• QA & deployment: automated testing, performance tuning, and push to a cloud provider such as AWS, Azure, or DigitalOcean with CI/CD configured.
• Handover: source code in a private repository, environment docs, and brief knowledge-transfer session.

Acceptance criteria
1. Users can add, update, and remove items in the cart without page reloads.
2. End-to-end checkout completes successfully with test cards on at least two payment gateways.
3. Lighthouse performance score ≥ 90 on desktop and mobile for the landing and checkout pages.
4. Deployed site remains functional after fresh install following the provided README.

If you have a proven record delivering production-ready e-commerce solutions and are comfortable owning design, development, and deployment, let’s talk timelines and milestones.