WooCommerce Multi-Vendor Marketplace Development (B2B Marketplace)

We are building a B2B WooCommerce Marketplace for industrial products. Our vision is similar to Google Shopping or Amazon Marketplace, where: - Buyers search for a product. - The marketplace displays offers from multiple sellers. - Every seller has their own catalog and pricing. - Buyers can compare products and purchase from one or multiple sellers. Initially, we are focused on building a scalable marketplace foundation with clean product data and supplier onboarding. Scope of Work We are looking for an experienced WooCommerce marketplace developer/team who has previously built multi-vendor marketplaces. Expected responsibilities include: - Install and configure WooCommerce - Configure a multi-vendor solution - Design a scalable marketplace architecture - Build seller onboarding workflow - Create product approval workflow - Implement master product catalog - Map seller products to master products - Product comparison page - Product search and filtering - SEO-friendly product pages - Performance optimization - Documentation Experience with marketplaces containing 100,000+ products is highly preferred. We are selecting a long-term technology partner. Please answer the following in detail 1. Marketplace Experience Have you built a multi-vendor WooCommerce -marketplace before? - Please share live URLs. - Approximately how many products and vendors do those marketplaces have? 2. Marketplace Architecture How would you design this marketplace? Please explain: - Marketplace architecture - Database approach - Product structure - Vendor structure - Scalability considerations 3. Master Product Catalog One of our biggest challenges is maintaining a clean Master Product Catalog. How would you build it? Please explain: - How master products are created - How duplicate master products are prevented - Required product attributes - Product taxonomy strategy - Product categories - Product specifications - Product variants 4. Seller Product Mapping Each seller may upload the same product using different names. How will your solution map these three products to the same Master Product? Please explain: - Automatic matching - Manual approval process - Attribute matching - SKU matching - AI or rule-based matching - Confidence scoring - Handling unmatched products 5. Seller Catalog Upload How will sellers upload products? Examples: - Excel - CSV - API - WooCommerce Import - ERP Integration What validations will you implement? 6. Product Updates Suppose a seller changes: - Price - Stock - MOQ - Delivery Time How will these updates affect the marketplace without impacting the Master Product? 7. Product Search How would you implement search? Would you use: - WooCommerce search - Elasticsearch/OpenSearch - Meilisearch - Algolia - Other 8. Marketplace Performance How would you optimize performance for: - 500,000+ products - 5 million+ offers - Thousands of vendors - High search traffic 9. Vendor Workflow Please explain your proposed workflow from: Vendor Registration → Approval → Product Upload → Product Mapping → Product Approval → Product Published 10. Duplicate Prevention How will you prevent: - Duplicate products - Duplicate sellers - Duplicate SKUs - Duplicate uploads 11. Estimated Timeline & Budget