# Cloud migration and 38% lower AWS bill

> Moved hand-managed servers to containers with infrastructure as code, CI/CD and full observability, while cutting cloud spend.

Source: https://www.mapleorbitsol.com/work/kubernetes-migration-cost

- Service: Cloud & DevOps (https://www.mapleorbitsol.com/services/cloud-devops.md)
- Client: A payments startup preparing for a security audit
- Industry: Fintech
- Region: United Kingdom
- Duration: 12 weeks
- Team: 2 DevOps engineers

## The challenge

Deploys were manual and risky, environments drifted, nobody could explain the cloud bill, and an upcoming audit needed evidence of change control.

## How we approached it

1. **Assessment:** Reviewed infrastructure, costs and incident history and agreed a target architecture.
2. **Infrastructure as code:** Rebuilt every environment in Terraform with peer-reviewed changes.
3. **Pipelines:** GitHub Actions with tests, security scans and one-click rollbacks to EKS.
4. **Observability:** Grafana, Prometheus and Sentry with alerts tied to customer-facing symptoms.

## Results

- **−38%** monthly AWS spend
- **20+ / week** deploys, up from one risky release a fortnight
- **Passed** security audit with no infrastructure findings

## Tech stack

AWS, Kubernetes, Terraform, Docker, GitHub Actions, Grafana, Prometheus, Sentry, Vault