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Full Stack·Logistics

Warehouse Management

Manual inventory counts and paper pick lists caused 8% order error rate.

Overview

We built a warehouse management system with mobile barcode scanning, optimized pick routes, and real-time inventory sync across e-commerce channels — replacing paper-based workflows that caused an 8% error rate.

Client

An e-commerce fulfillment center...

Timeline

12 weeks

Team

2 engineers

Industry

Logistics

The Challenge

An e-commerce fulfillment center processed a high volume of orders daily using paper pick lists. Workers walked inefficient routes, items were frequently mispicked, and inventory counts drifted significantly from actual stock levels. Returns from wrong-item shipments were a constant problem.

Our Approach

1

Implemented barcode scanning for receiving, picking, and shipping verification

2

Built wave-based picking with optimized routes that group orders by warehouse zone

3

Created real-time inventory sync with Shopify, Amazon, and WooCommerce

4

Added quality control checkpoints at packing stations with scan verification

Key Results

<1%

Error Rate

40%+

Faster Picking

99%+

Inventory Accuracy

12 wks

Delivered In

Order error rate dropped from 8% to under 1%

Picks per hour increased by 40%+ through route optimization

Inventory accuracy improved from 85% to over 99%

Returns due to wrong-item shipments virtually eliminated

Our error rate was embarrassing. Eight percent of orders going out wrong means a lot of angry customers and expensive returns. Now it's under one percent and our team is faster too because they're not walking random routes through the warehouse.

Operations Manager, Fulfillment Center

Tech Stack

FlutterNode.jsPostgreSQLShopify APIAmazon SP-API

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