I need a robust multivendor e-commerce solution built from the ground up that can comfortably host about 1,000 independent storefronts. Vendors will list and sell a mix of physical commercial medical products alongside digital items such as e-books and manuals, so the platform must switch seamlessly between shipping logistics and instant file delivery. A few pillars guide this build: • Each vendor gets a branded dashboard to manage inventory, orders, payouts, and analytics. • The catalogue must support regulatory data fields specific to medical merchandise while also attaching secure download links for digital files. • Customers should experience a single-cart checkout with real-time stock updates, shipping calculations, and automated access to purchased downloads. • Payments, refunds, commissions, and vendor settlements need to run through a flexible split-payment gateway (Stripe Connect, PayPal Marketplace, or a comparable solution). • Performance has to stay smooth under the weight of 1,000 stores, so clean architecture, caching, and scalable hosting are essential. Acceptance criteria 1. A live, fully-tested marketplace handling at least 10,000 concurrent product SKUs without latency above 300 ms. 2. Separate workflows verified for physical shipping labels and digital file delivery links. 3. Admin panel shows accurate commission calculations and vendor earnings reports. 4. End-to-end documentation and a short hand-off session so my internal team can handle routine maintenance. Preferred tech stacks include Laravel + Vue, Django + React, or a comparable modern framework, but I’m open to suggestions if you can justify the choice for scalability and security. If you’ve previously launched high-capacity multivendor sites and can point to measurable results, I’d love to see them.