Multi-Vendor E-Commerce Web & Apps

I’m building a full-fledged marketplace where multiple sellers can list and ship physical products. I need the entire ecosystem put together—from a responsive web storefront to native mobile apps for both iOS and Android—so customers can shop seamlessly on any device while vendors manage their own inventory, orders and payouts in real time. Key requirements • Multi-vendor architecture: separate vendor dashboards, commission setup, product approvals, dispute management and detailed sales analytics in the admin panel. • Cross-platform experience: one code-base or tightly aligned builds that deliver the same feature set on the web, iOS and Android without sacrificing speed or UI polish. • Secure checkout: integrate Razorpay as the primary gateway and make it easy to extend to other methods such as card or PayPal later. • Core shopping features: search and filter, wish-lists, reviews & ratings, discount coupons, cart persistence, push/email notifications, shipment tracking and returns workflow. • Scalable backend: REST/GraphQL APIs, robust database design, role-based access control, caching and logging ready for cloud deployment. • Handover assets: complete source code, build/deploy scripts, API documentation and short video walkthroughs so my in-house team can continue maintenance. I’ll provide brand guidelines, initial wireframes and hosting credentials. If you have launched similar marketplaces and can demonstrate app-store or web links, let’s talk timelines and a phased milestone plan to take this live.