HealthTech SaaS
E-commerce Platform2023 · 9 min read · 8 months project
How We Built a Multi-Vendor Marketplace for 10,000+ Indonesian SMEs
Building a scalable multi-vendor marketplace with real-time inventory, Indonesian payment gateways, and a powerful vendor analytics dashboard — from zero to 5,000+ monthly orders.
Client
Nusa Commerce
Industry
Retail & E-commerce
Duration
8 months
Year
2023
10K+
SKUs Managed
5,000+
Monthly Orders
200+
Vendor Onboarded
99.9%
Uptime Achieved
The Challenge
Nusa Commerce needed a marketplace that could handle hundreds of independent vendors simultaneously, each with their own inventory, pricing rules, and payout cycles — all while maintaining sub-second response times and integrating with local Indonesian payment infrastructure.
Our Solution
We designed a microservices architecture with isolated vendor namespaces, real-time stock sync via Redis pub/sub, and a custom settlement engine for automated vendor payouts. The frontend was built in React with a unified vendor dashboard for inventory, orders, and earnings.
// deep dive
Understanding the Multi-Vendor Challenge
The core challenge wasn't just "build a shop". It was orchestrating hundreds of sellers with conflicting inventory states, partial fulfillment scenarios, split cart checkouts, and per-vendor commission logic — all surfaced in a clean consumer experience.
Architecture: Microservices for Vendor Isolation
Each vendor's catalog, stock, and order pipeline runs in isolated service boundaries. We used an event-driven model with a central order orchestrator, so one vendor's service degradation never cascades to another. Redis Streams handled inventory broadcasting in under 50ms.
Payment Integration: Midtrans + DANA
Indonesian consumers demand local payment options. We built a unified payment abstraction layer supporting Midtrans (credit, debit, e-wallets), DANA, and bank transfers — with automatic reconciliation and vendor payout scheduling.
Result: 5K+ Monthly Orders in 3 Months
After a phased rollout — beta vendors first, then public — the platform scaled smoothly through Harbolnas (Indonesia's largest sale day). The vendor dashboard became a key selling point for acquiring new sellers.
// outcome
The Result
Six weeks after launch, Nusa Commerce onboarded 200+ vendors and processed over 1,000 orders in the first week alone. The platform achieved 99.9% uptime through its first peak sale season — Harbolnas.
ReactNode.jsPostgreSQLRedisMidtransDANA
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