Warehouse Consolidation System
Smart warehouse routing system with UPS integration for optimal shipping
Private employer Details are sanitized; architecture and outcomes are described without proprietary identifiers.
At a glance
- faster checkout processing
- 75%
- warehouse ranking per order
- Sub-second
- availability through carrier outages
- 100%
- Role
- Full Stack Developer
- Year
- 2025
- Category
- Backend Software Dev
About This Project
Engineered a multi-warehouse routing engine to optimize order fulfillment across distributed inventory centers. Integrated real-time shipping APIs with concurrent request handling to minimize latency. Developed custom inventory logic for complex product types and implemented robust fallback mechanisms to ensure 100% system availability during third-party API outages.
Engineering Deep Dive
How a checkout-time routing engine classifies order lines, rates candidate warehouses in parallel, consolidates shipments, and falls back to internal ranking when the carrier API goes down.
Read the engineering deep diveTechnologies Used
Engineering Challenges
01
Inventory Dependency Logic
Solved the challenge of tracking 'virtual' stock for kits and custom-cut items that do not hold independent inventory. Implemented a recursive validation system that calculates availability in real-time based on parent component stock levels.
02
Logistics Optimization
Designed an algorithm to handle split-inventory orders, dynamically grouping items to reduce shipping costs and transit times while adhering to specific business constraints for vendor-shipped and backordered goods.
03
Performance at Scale
Addressed high-latency issues inherent in sequential API calls by implementing a concurrent request architecture, reducing processing time by over 75% during the checkout phase.
Technical Highlights
Concurrent API Integration: Utilized parallel cURL processing to query multiple logistics endpoints simultaneously, achieving sub-second response times for complex warehouse ranking operations.
Data Normalization Layer: Built a robust preprocessing engine to sanitize and format geographic data, ensuring high success rates for third-party API address validation and rate requests.
Resilient Architecture: Designed a 'Graceful Degradation' strategy that detects external service failures and automatically switches to an internal fallback ranking system, maintaining a seamless user experience.
Business Logic
Direct-to-Consumer Routing: Automated the detection and exclusion of vendor-managed (dropship) items from internal consolidation to streamline fulfillment.
Intelligent Backorder Handling: Developed logic to isolate out-of-stock items to primary distribution hubs, preventing unnecessary transshipments and reducing overall delivery lead times.
Hybrid Fulfillment Rules: Created a specialized 'Will-Call' workflow that allows for immediate local pickup of available stock while automatically coordinating the consolidation of remaining order items.