Multi-Vendor Marketplace
Development of a multi-vendor marketplace with a catalog of 50,000+ products, $2M+/month GMV, and integration with 15+ payment and logistics services.
About the Project
A multi-vendor marketplace uniting hundreds of sellers on a single platform. The catalog includes over 50,000 products across dozens of categories, with monthly platform turnover exceeding $2M. The platform provides a complete purchasing cycle: from product search to delivery and returns.
Challenge
The client, a major retail company, decided to transform their business from a single-brand online store into a marketplace. The goal was to create a platform that would allow external sellers to list products, manage orders, and receive payouts while maintaining a unified user experience and quality control.
Key requirements:
- Multi-vendor architecture with isolated seller dashboards
- Catalog with faceted search across 50,000+ SKUs with autocomplete and filtering
- Integration with 15+ payment providers and logistics services
- Automated commission calculation and split-payment system
- Scalability for peak loads (Black Friday, seasonal sales)
Solution
We designed and developed a marketplace on Laravel (backend API) and React (SPA frontend), with PostgreSQL as the primary database and Elasticsearch for search.
Architecture
- Modular monolith on Laravel with clear domain separation: catalog, orders, payments, shipping, users, analytics
- React SPA with server-side rendering via Next.js for catalog page SEO optimization
- PostgreSQL with optimized indexes for catalog operations and transactions
- Elasticsearch for full-text and faceted search with autocomplete and fuzzy matching
- Redis for caching, session management, and real-time notifications
- AWS — EC2 Auto Scaling, S3 for media files, CloudFront CDN, RDS for the database
Key Features
- Seller dashboards with catalog, pricing, inventory, and order management
- Promotions system: coupons, category discounts, flash sales with timer
- Automated commission calculation and seller payouts via Stripe Connect
- Integration with CDEK, DPD, and postal services for shipping cost calculation and delivery tracking
- Admin analytics panel: GMV, conversion, average order value, seller metrics
Result
The marketplace was successfully launched and consistently processes thousands of orders daily. The catalog has grown to 50,000+ SKUs, and the platform handles 10x load spikes during peak periods without performance degradation. Average catalog page load time is under 1 second.
Project Technologies
Laravel
React
PostgreSQL
AWSKey Metrics
FAQ
What technology stack was used to build the e-commerce marketplace?
The backend is a modular monolith on Laravel with clear domain separation for catalog, orders, payments, shipping, and analytics. The frontend is a React SPA with server-side rendering via Next.js for SEO optimization. PostgreSQL handles transactional data, Elasticsearch powers full-text and faceted search with autocomplete, Redis manages caching and real-time notifications, and the platform runs on AWS with EC2 Auto Scaling, S3, and CloudFront CDN.
What were the main technical challenges in building the multi-vendor marketplace?
The split-payment system was a major challenge — calculating commissions, handling refunds, and automating payouts to hundreds of sellers while maintaining accurate accounting required deep Stripe Connect integration. Scaling the catalog search to 50,000+ SKUs with instant faceted filtering and autocomplete demanded careful Elasticsearch index design. Handling 10x traffic spikes during Black Friday and seasonal sales without performance degradation required auto-scaling infrastructure and aggressive caching strategies.
How long did the e-commerce marketplace development take?
The initial marketplace with seller onboarding, product catalog, checkout, and basic order management launched in 7 months. The promotions engine, advanced analytics dashboard, and logistics integrations with CDEK, DPD, and postal services were delivered in a second 3-month phase. The platform has been continuously enhanced with new features since launch.
What business results has the e-commerce marketplace achieved?
The marketplace consistently processes thousands of orders daily with a catalog of 50,000+ SKUs from hundreds of sellers. Monthly GMV (gross merchandise value) exceeds $2 million. The platform handles 10x load spikes during peak sales periods without degradation, and average catalog page load time stays under 1 second even during peak traffic.
Can a similar multi-vendor marketplace be adapted for my retail business?
Yes. The marketplace architecture is built for customization — we can adapt seller workflows, commission structures, and category hierarchies to your specific business model. Whether you need a B2B wholesale marketplace, a niche vertical marketplace, or a general consumer platform, the core modules (catalog, payments, shipping, seller management) can be configured independently. We also support integration with your existing inventory and ERP systems.
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