E-Commerce & Retail · 8 months · 4 engineers

Cloud Migration and Platform Modernization for E-Commerce

Cloud Infrastructure Product Development

Client Overview

A mid-market e-commerce company with $50M in annual revenue was struggling with an aging monolithic platform that couldn't handle peak traffic and was slowing down feature delivery.

The Challenge

The legacy monolith was built on outdated technology, making it difficult to recruit developers and impossible to scale individual components. Deployments were risky all-or-nothing affairs that required weekend maintenance windows, and the platform regularly crashed during sales events.

Our Solution

DHD Tech assembled a team of four senior engineers -- two backend, one frontend, and one DevOps specialist -- who executed a strangler fig migration over 8 months. Critical services (cart, checkout, search) were extracted into independent microservices, a new React storefront was built, and the entire infrastructure was migrated from on-premise servers to AWS EKS with auto-scaling capabilities.

Technology Stack

Python Django React PostgreSQL Redis AWS EKS Terraform GitHub Actions

Results

99.99%
Uptime during peak sales events
3x
Improvement in page load speed
70%
Faster feature deployment cycles
40%
Reduction in infrastructure costs

"The migration was seamless -- our customers didn't notice a thing, but our engineering team noticed everything. We ship features in days now, not months."

— CTO, Confidential E-Commerce Client

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