HS
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Full-stack multi-vendor marketplace with payment processing and real-time inventory
Built scalable multi-vendor e-commerce platform processing $500K+ monthly transactions, featuring advanced product management, payment processing, inventory tracking, and vendor analytics dashboard.
Client needed a robust e-commerce solution supporting multiple vendors with complex product variations, real-time inventory management, and seamless payment processing. Existing solutions were either too limited or prohibitively expensive, requiring a custom-built platform that could scale with business growth while maintaining performance.
Developed comprehensive Next.js-based marketplace with server-side rendering for SEO optimization
Implemented Redis caching for performance and PostgreSQL for transactional data integrity
Integrated Stripe Connect for multi-vendor payments with automated commission splitting
Built AWS S3 integration for image management with CloudFront CDN delivery
Created real-time inventory synchronization system across all vendors
Developed responsive admin dashboard with analytics and order management
Implemented automated vendor payout system with commission calculations
Implementing Stripe Connect to handle split payments between platform and multiple vendors while managing commission rates, refunds, and automated payouts.
Integrated Stripe Connect with platform and connected accounts for each vendor. Built automated commission calculation system with configurable rates per vendor. Implemented webhook handlers for payment events, refund processing, and transfer monitoring. Created comprehensive transaction ledger with audit trail and automated reconciliation.
Preventing overselling across multiple vendors while maintaining real-time inventory accuracy during high-traffic periods like sales events.
Implemented optimistic UI updates with pessimistic database locks during checkout. Used Redis for inventory caching with pub/sub pattern for real-time updates. Built queue system for processing inventory adjustments with retry logic. Created inventory reservation system during checkout process with automatic release on timeout.
Maintaining fast page loads and search performance with 15K+ products and growing traffic while keeping infrastructure costs reasonable.
Implemented aggressive caching strategy with Redis and Next.js ISR. Built efficient database queries with proper indexing and pagination. Optimized images with Next.js Image component and CloudFront CDN. Implemented lazy loading for product grids and infinite scroll. Used connection pooling and read replicas for database scaling.
Providing instant search results with faceted filtering across thousands of products with various attributes and categories.
Implemented full-text search with PostgreSQL GIN indexes. Built efficient query builder for complex filter combinations. Used materialized views for aggregated facet counts. Implemented search result caching with automatic invalidation. Created search suggestions with Redis-backed autocomplete.
Gained deep understanding of e-commerce patterns including cart management, checkout flows, payment processing, order fulfillment, and customer communication.
Mastered Stripe Connect API for marketplace payments, webhook handling, idempotency, and PCI compliance requirements.
Advanced skills in PostgreSQL performance tuning, indexing strategies, query optimization, and connection management at scale.
Improved communication with non-technical stakeholders, translating business requirements into technical solutions and managing expectations.
Public service payment processing system (permits, licenses, fees)
"The e-commerce platform Hunny developed has been transformative for our business. The secure payment processing, bilingual support, and mobile optimization have driven significant revenue growth. The system is reliable, fast, and our customers love the experience."