Custom E-Commerce Platform

Overview

We designed and developed a tailor-made e-commerce platform for a mid-sized retail chain that had outgrown off-the-shelf solutions. The system supports multi-location inventory management, multiple payment gateways, and a real-time admin dashboard.

Background

The client was operating on a legacy system that couldn't handle their growing catalog of 10,000+ SKUs across 5 warehouses. Inventory sync was done manually via spreadsheets, causing frequent stockouts and overselling.

Solution Design

Core Modules

1. Product Catalog

• Supports product variants (size, color, etc.)
• Rich content editor for product descriptions
• Bulk import/export via CSV

2. Inventory Management

• Real-time stock tracking across 5 warehouse locations
• Automatic reorder alerts when stock drops below threshold
• Transfer requests between warehouses from the admin panel

3. Order Management

• Order routing to nearest warehouse based on shipping address
• Integrated tracking with major Thai logistics providers (Flash, Kerry, J&T)
• Automated refund workflows

4. Payment Gateway

• QR payment via PromptPay
• Credit/debit cards via Omise
• Buy-now-pay-later via Installment plan

Tech Stack

Backend:    Laravel 11 + PHP 8.3
Frontend:   Vue.js 3 + Inertia.js
Mobile App: React Native (iOS & Android)
Database:   PostgreSQL 16
Cache:      Redis
Storage:    AWS S3 + CloudFront CDN
Search:     Meilisearch

Performance Highlights

• Product search responds in < 100ms via Meilisearch
• Checkout flow completes in 3 steps (down from 7)
• Mobile app achieved 4.8 ★ rating on App Store

Outcome

• Eliminated manual inventory reconciliation — saving 8 hours/week of staff time
• Reduced cart abandonment by 22% through streamlined checkout
• Increased mobile revenue by 40% in the first quarter post-launch