B2B Multi-Brand E-Commerce Platform - Custom Build

Custom E-Commerce Platform Development (B2B + Multi-Brand) – .NET + React

I am looking for an experienced developer or a professional team to build a custom, enterprise-level e-commerce platform similar in structure and functionality to WebstaurantStore.
No Shopify, WooCommerce, or ready-made platforms. This will be fully custom-built.

example site https://www.webstaurantstore.com/

Required Tech Stack

Frontend: React / Next.js

Backend: ASP.NET Core / .NET (Modular API architecture)

Database: MSSQL

Cache: Redis

Storage: AWS S3 or similar object storage

Project Scope & Modules
1. Multi-Brand Product Management

Centralized management for multiple brands (e.g., food products, machines, equipment)

Product variants, categories, specifications, technical documents (PDF), multi-image handling

2. Advanced B2B Pricing System

Multiple customer groups (wholesaler, distributor, retail, export)

Multi-currency price lists (USD / EUR / TRY)

Quantity-based discounts & promotional pricing

Customer-specific price visibility

3. Warehouse & Inventory Management

Multi-warehouse support

Stock by warehouse

Stock movements (inbound, outbound, reservations, shipment)

Real-time inventory tracking

4. Order & Checkout Flow

Cart → Order → Payment → Fulfillment

Payment methods: Credit card + Bank transfer

Shipping label creation via cargo company API

Order status management

5. Admin Panel (Backoffice)

Product & inventory management

Price list management

Customer management

Order management

Campaign management

Basic reporting (sales, top products, customer revenue, etc.)

6. B2B Dealer Portal

Login-based price lists

Dealer-specific discounts

Order history

Special promotions visible only to dealers

7. Integrations

Payment gateway (iyzico / PayTR or similar)

Shipping API integration

Future-ready structure for ERP (Logo / Mikro / Netsis) integration
Requirements from the Developer

Senior-level expertise

Previous experience with large-scale e-commerce platforms

Clean, maintainable, modular coding

Scalability-focused architecture

Ability to provide long-term support

Project Summary

I need a powerful, fast, and scalable custom e-commerce platform designed for B2B operations and multiple brands.
The goal is to build an infrastructure similar to WebstaurantStore—high performance, flexible pricing logic, multi-warehouse management, and full admin control.