Case studies

Cutting AWS cost and halving API latency for a fintech platform

A growing fintech company was paying for capacity it did not use and serving regional users from far away. A cost programme and a careful region migration fixed both.

saved on AWS every month

USD 5,800

lower API latency for regional users

50%

user impact during the region migration

Zero

Moving an enterprise from CloudFormation to Terraform without stopping delivery

A regional organisation had outgrown its infrastructure tooling. Rahmat led the move to Terraform, built a shared module registry and automated blue/green releases.

CloudFormation-to-Terraform migration

Enterprise-wide

Terraform module registry for all teams

Centralised

deployments at scale with GitHub Actions

Blue/green

Reducing Azure cost by 51% and bringing enterprise AI to a state-owned enterprise

Reporting to the Executive Director, Rahmat cut Azure infrastructure cost by half, introduced Terraform as the standard and built an internal AI tool on Azure OpenAI.

reduction in Azure infrastructure cost

51%

projected savings per year

USD 50,000

hours a year projected to be saved through automation

10,000

An AI-assisted panel for policy and economic analysis

A capability Rahmat built for InfraLoka: several AI expert perspectives challenge a proposal before a leader sees it, and every conclusion stays traceable to its evidence.