Lead end-to-end architecture and delivery governance for a regulated AWS platform supporting CDAP (pharmacometrics) and BEE (biostats). Own multi-environment architecture (DEV/TEST/PROD/DR) using Terraform modularization and GitOps practices. Define platform blueprint for compute, storage, networking, identity, CI/CD, observability, DR, and operational readiness. Key Responsibilities Define target AWS architecture for VPC design with department isolation (subnets, NACLs, security groups). Archi