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PrettyLittleThing

Serverless migration

Re-platforming and serverless migration for a global fast-fashion retailer, modernising the commerce stack for scale and resilience.

E-commerceUnited Kingdom2019 — Active
600k
Daily customers
£1.5M
Daily revenue
60%
Infrastructure cost cut
Overview

PLT, a fast-growing online fashion retailer, needed to scale its user base and reduce operational cost while working around the scalability limits of its existing Magento platform.

Technology used

AWS LambdaAmazon DynamoDBAmazon SQSAPI GatewayNode.jsReactReact Native
The challenge

What stood in the way

Scaling the user base

PLT required the ability to scale its customer base and meet rising demand. Their existing Magento infrastructure presented significant scalability limitations that impeded progress.

Sourcing skilled talent

Locating high-skilled, cost-effective talent proved challenging. The company needed rigorous screening and aggressive recruitment strategies to augment their development resources.

The solution

What we built

Migration to serverless microservices

The application moved from a monolithic Magento structure to serverless microservices on AWS, improving scalability, flexibility, and cost-efficiency.

Efficient CI/CD

A delivery strategy centred on efficient CI/CD pipelines, letting the team ship faster with less risk.

Resource augmentation and mentorship

Top-tier resources — team leads, developers, DevOps, QA and an account manager — integrated with the onshore team, with continuous mentorship built in.

The outcome

What changed

Improved performance

Serverless microservices enhanced application performance and resilience, enabling the platform to scale effectively with demand.

Cost reduction

A 60% cost reduction against the previous VPS infrastructure, through efficient resource utilisation and AWS pay-as-you-go pricing.

Better code management

The redesigned architecture enabled faster development cycles, easier maintenance, and seamless feature integration.

Business growth

The platform grew to serve 600,000 daily customers and £1.5M in daily revenue.

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