E-Commerce Microservices Engine

A high-performance microservices architecture for a global e-commerce platform handling millions of daily transactions.

NestJSNode.jsAWSPostgreSQLRedisKafka

Code is private/proprietary

Architecture Overview

Designed a loosely coupled architecture using Apache Kafka for event-driven communication between services. Implemented the API Gateway pattern with rate limiting and caching.

Architecture Diagram PlaceholderImagine a beautiful systems architecture graph here.

The Problem

The existing monolithic backend was failing under high seasonal traffic, leading to dropped orders and latency spikes.

The Solution

Decoupled the monolith into domain-specific microservices (Inventory, Orders, Users) communicating asynchronously via Kafka.

Lessons Learned

"Managing data consistency across microservices is complex; the Saga pattern requires careful handling of compensation logic."

Key Features

✓Distributed transaction management using the Saga pattern
✓Real-time inventory sync with Redis caching
✓Auto-scaling AWS EKS cluster

Result Metrics

40%
40% reduction in API latency
Zero
Zero downtime during Black Friday peak
Scales
Scales to 10k+ concurrent requests