A Legacy E-Commerce Platform, Rebuilt for Performance
Sales, Marketing & GrowthE-Commerce · Platform Engineering

A Legacy E-Commerce Platform, Rebuilt for Performance

Client: Confidential Client · Industry: Sales, Marketing & Growth

  • E-Commerce
  • React
  • PWA
01Overview

8-second load times. 78% cart abandonment. We fixed both.

We rebuilt a legacy e-commerce platform using a modern React headless architecture — reducing page load times from over 8 seconds to 1.2 seconds, cutting cart abandonment by 45%, and growing mobile traffic by 200% within three months of launch.

A phased migration strategy ensured zero downtime throughout the transition.

02The Challenge

A platform built for a different era was failing on every modern metric.

The existing platform was running on outdated technology that produced page load times exceeding 8 seconds on mobile, a cart abandonment rate of 78%, and no responsive design — meaning mobile users, who represented a growing share of traffic, had a fundamentally broken experience.

Scalability was also a hard constraint: the platform couldn't handle traffic spikes during peak seasons, meaning promotional periods — the highest-value commercial moments — were also the most likely to fail.

03What We Built

Headless React. Progressive web app. Optimized checkout. Cloud infrastructure.

01
Headless Commerce Architecture

Rebuilt the frontend on React with a headless CMS — decoupling the presentation layer from the commerce engine to enable sub-second page loads and full design control.

02
Progressive Web App Features

Implemented PWA capabilities including offline mode, add-to-home-screen and push notifications — delivering an app-quality experience on mobile without an app store dependency.

03
3-Step Checkout Optimization

Redesigned the checkout flow from a multi-page process to a streamlined 3-step experience — the single highest-impact change for cart abandonment reduction.

04
Scalable Cloud Infrastructure

Deployed on cloud infrastructure architected to handle peak traffic without degradation — so promotional periods no longer risk platform failure.

05
Phased Migration, Zero Downtime

A phased rollout strategy with A/B testing and gradual traffic migration ensured the legacy platform stayed live throughout — customers experienced no service interruption.

04Impact

150% more conversions. 200% more mobile traffic. In 3 months.

150%

Conversion Rate Increase

Within the first three months of launch — driven by faster load times, mobile optimization and checkout redesign.

1.2s

Page Load Time

Down from over 8 seconds — a reduction that directly drove the conversion and abandonment improvements.

−45%

Cart Abandonment

The 3-step checkout and performance improvements together reduced abandonment from 78% to under half that.

0%

Conversion Increase

0.0s

Page Load Time

0%

Cart Abandonment

0%

Mobile Traffic Growth

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