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// case study

Infra Toolkit & Platform Primitives

Small teams shipping fast need repeatable deploy patterns, not copy-paste Terraform per service.

Role

Platform engineer — modules, CI templates, observability baselines

Stack

TerraformGitHub ActionsGrafanaAWSDocker

Highlights

  • →Composable Terraform modules for VPC, ECS, and managed Postgres
  • →Golden-path CI: lint → test → build → deploy with environment promotion

Architecture

Opinionated modules encode security defaults (private subnets, least-privilege IAM, encrypted state). Services consume modules via versioned tags — no floating main.

Engineering details

  • Environment matrix — dev/staging/prod with identical topology, scaled down in non-prod.
  • Runbooks as code — alert rules shipped with each module.
  • Cost guards — budget alerts wired at account level.

Outcomes

  • New service bootstrap from empty repo to staging in under 2 hours
  • Incident MTTR down after standardized dashboards per service