Custom Multi-Panel E-Commerce Platform

I am ready to commission a ground-up, custom-built e-commerce ecosystem that includes every interface my business needs to operate smoothly:

• Customer website
• Customer mobile app
• Admin panel
• Seller panel
• Seller mobile app

Customer-facing side
The app and website must feel identical in capability. Shoppers should be able to search and filter products easily, complete purchases with in-app payments, and track every order in real time.

Back-office side
Inside the admin panel I need full user management, streamlined order management, and clear analytics/reporting so I can follow performance without jumping between tools. Sellers will have their own dedicated panel and companion app to upload products, manage stock, and view their orders and earnings.

Architecture & code
Everything has to be custom—no Shopify, no WooCommerce—so the stack should be modern, scalable, and cleanly documented for future feature work. Source code, database schemas, and deployment instructions must all be part of the hand-off.

If you have delivered end-to-end marketplaces before and can propose a sensible tech stack along with a realistic timeline, I look forward to hearing how you would tackle the build.