Ireland and the United Kingdom enterprise technology-change research

PT-2026-204 · dossier edition · 5 August 2026

PlatformTrace

Enterprise platform change across Ireland and the United Kingdom.

container-platform migration · operational

Monzo migrates more than 3,000 microservices from self-hosted Kubernetes to Amazon EKS

Monzo's engineering retrospective states that an automated migration service moved more than 3,000 microservices from self-hosted Kubernetes to Amazon EKS and could roll back failed migrations.

Organisation
Monzo, United Kingdom
Predecessor
Monzo's self-hosted Kubernetes platform
Destination
Amazon Elastic Kubernetes Service with an automated migration and rollback service
Workload
Amazon EKS
Stage
operational
Evidence boundary: 13 May 2026 is the retrospective publication date, not a separately proven migration-completion date. The record does not infer the exact completion day or retirement of every historical Kubernetes component.

Verified platform change

Monzo's engineering retrospective states that an automated migration service moved more than 3,000 microservices from self-hosted Kubernetes to Amazon EKS and could roll back failed migrations.

Transition

From: Monzo's self-hosted Kubernetes platform

To: Amazon Elastic Kubernetes Service with an automated migration and rollback service

Known unknowns

13 May 2026 is the retrospective publication date, not a separately proven migration-completion date. The record does not infer the exact completion day or retirement of every historical Kubernetes component.

Official sources

  1. The engineering behind the platform — 2026-05-13

Updates

Source rechecked on 5 September 2026. The first-party Monzo evidence has not materially changed; more than 3,000 microservices remain the supported scope, without an inferred exact completion day or universal retirement claim.