The problem
Six years of organic growth had left Nordiq Financial with 18 AWS accounts, no consistent naming, networking or IAM, and six accounts with no clear owner. A recent audit surfaced PCI-DSS gaps in segmentation, encryption, access control and logging that couldn't be remediated account-by-account, while five platform engineers spent 70% of their week on reactive work and developers waited days for any change.
What we shipped
A Control Tower landing zone with an OU hierarchy mirroring how Nordiq actually works — Security, Infrastructure, Workloads (with a hardened PCI sub-OU) and Sandbox — and SCPs and Config rules at each level. Eighteen accounts were inventoried, dependency-mapped and consolidated to twelve, with IAM Identity Center replacing long-lived credentials, Transit Gateway replacing VPC-peering sprawl, and Security Hub plus GuardDuty enabled organisation-wide with automated PCI evidence collection.
The outcome
PCI-DSS was achieved on the next assessment, with the auditor calling out the maturity of the automated evidence collection. Account consolidation eliminated $14K/month in orphaned resources, and self-service Terraform modules behind the new guardrails delivered 3× faster deployments and an 80% cut in audit prep time.