Omnichannel Warehouse & Order Fulfillment Engine
Architected a high-throughput fulfillment orchestration system managing stock across 50+ distribution centers, handling 10,000+ orders/hour with sub-15ms real-time lookup query response times.
Core Logistics Tech Stack & Event Microservices
The Overselling & Warehouse Sync Bottleneck
A major retail enterprise with physical outlets and multiple online storefronts suffered from stock desynchronization. Orders placed during flash sales led to overselling and delayed fulfillment because inventory updates took minutes to reflect across regional fulfillment hubs.
We engineered an event-driven inventory message streaming pipeline using Kafka and Elasticsearch, broadcasting stock reservation events instantaneously to prevent duplicate picking and automatically routing orders to the nearest distribution warehouse.
Fulfillment System Highlights
- Distributed Stock Locking: Sub-15ms Redis distributed lock ensuring accurate real-time SKU counts.
- Smart Geolocation Routing: Auto-dispatching orders based on buyer proximity and stock availability.
- Courier API Integrations: Automated label generation and real-time package tracking webhooks.
Non-Disclosure Agreement (NDA) Notice: Specific enterprise supply chain brand names, warehouse addresses, and courier API keys have been anonymized in this case study.