Case Study: HMRC cuts costs and migrates 450+ APIs with Equal Experts

HMRC migrates 450+ APIs with zero downtime using Equal Experts

HMRC, the UK's tax and payments authority, faced a critical challenge when its legacy Integration Framework platform, built on RHEL-7 and Docker Swarm, neared the end of its support lifecycle. This posed significant security and stability risks for over 450 APIs handling millions of daily requests. Equal Experts was engaged to help HMRC migrate these essential services to a modern, secure environment without any service disruption.

Equal Experts implemented a phased 'lift and shift' migration to Kubernetes, utilizing a weighted traffic policy and a simultaneous "build-test-migrate" delivery mechanism. This approach successfully moved all 450+ APIs with zero downtime for consumers. The solution modernized the tech stack, introduced auto-scaling and self-healing capabilities, and delivered six-figure annual AWS savings by retiring legacy infrastructure.

HMRC (His Majesty’s Revenue and Customs)