< cd ../projects

~/projects/aws-cloud-migration

AWS Cloud Migration

year
2024
role
Cloud architect & engineer
client
Trading company (60 staff)
  • AWS
  • Terraform
  • Migration
  • Cost optimization

The brief

The client's server room was a closet with a household fan. Their ERP ran on a 7-year-old box out of warranty, and the quote for replacement hardware was eye-watering. They wanted out of the hardware business entirely.

What I did

  • Assessed workloads and mapped every dependency before touching anything.
  • Built a landing zone in AWS with Terraform: VPC, subnets, security groups, SSM access — no public RDP, ever.
  • Migrated the ERP database to RDS and the application tier to EC2 with automated AMI backups.
  • Moved 4 TB of file shares to FSx with AD integration, so drive mappings kept working on day one.
  • Set up site-to-cloud VPN, CloudWatch alarms and a monthly cost report the owner can actually read.

Outcome

  • 30% below the 5-year cost of the hardware refresh
  • RPO went from "last night's tape, maybe" to 15 minutes
  • Patch weekends eliminated — maintenance windows are now automated
  • The closet is a closet again