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E-Commerce2024

E-Commerce Platform

Client
RetailPlus (confidential)
My Role
Lead Full-Stack Engineer
Duration
8 months

Project Preview

E-Commerce Platform

Overview

A comprehensive e-commerce solution built for a growing retail chain needing to transition from physical stores to digital presence. The platform handles thousands of products, real-time inventory across multiple warehouses, and processes hundreds of orders daily with 99.9% uptime.

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The Challenge

The client operated 15 physical stores with separate inventory systems. They needed a unified platform that could show real-time availability across all locations, handle online payments, and integrate with their existing POS systems. The main challenge was syncing inventory across stores and the website without overselling.

The Solution

We built a microservices-based architecture with a central inventory service that aggregates stock from all stores. The system uses Redis for real-time inventory caching, webhooks for POS integration, and a queue system for order processing to prevent race conditions during high-traffic events like flash sales.

Key Features

Real-time inventory across 15+ store locations
Multi-vendor marketplace capabilities
Automated tax calculation based on location
Smart shipping rate calculator
Customer order tracking portal
Admin dashboard with sales analytics
Bulk product import/export via CSV
Automated email notifications at order milestones

Key Results

01300% increase in online revenue within 6 months
02Zero overselling incidents since launch
0399.9% uptime during Black Friday sales (10,000+ orders)
04Reduced inventory reconciliation time from 4 hours to 15 minutes daily
05Successfully onboarded 50,000+ active users

Tech Stack

Frontend
Next.js 14TypeScriptTailwindCSSRedux ToolkitReact Query
Backend
Node.jsExpressGraphQLBullMQ (Queue)Stripe API
Database
PostgreSQLRedisPrisma ORM
DevOps & Infrastructure
AWS (EC2, RDS, S3)DockerGitHub ActionsNginx
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Software Engineer | Full Stack Developer | Scalable Web Platforms