Selected hands-on work and reference implementations.
  
    
      3-Tier Web on AWS
      VPC + ALB/ASG with production-like hygiene.
      GitHub →
     
    
      CloudTrail → Athena
      Central audit lake with partitioned queries.
      GitHub →
     
    
      AWS Config Baseline
      Guardrails for EC2 (no public IP) with drift detection.
      GitHub →