The College Board’s Cloud and Platform Security Engineering (CPSE) team designs, builds, and secures the cloud foundation that powers our most critical applications and services. We partner closely with product engineering, platform, risk, compliance, and application teams to design, automate, and operationalize scalable security controls, building reusable tooling and guardrails that make secure application deployments the default across AWS environments. Rather than operating as a reactive review function, we implement preventive and detective controls that reduce systemic risk while enabling teams to move quickly. Our work spans multi-account cloud architecture, identity and access management, network segmentation, automation, detection engineering, and compliance alignment. We focus on scalable, repeatable solutions that strengthen security posture across the enterprise.