Manage and enforce cybersecurity posture, compliance, and continuous monitoring for a cloud-based enterprise environment supporting Department of Defense (DoD) missions. Integrate data protection architecture, Zero Trust enforcement, and continuous RMF evidence generation across AWS GovCloud IL4/IL5 environments. Serve as the key authority ensuring systems meet or exceed all DoD cybersecurity mandates, including DISA STIG/SRG compliance, RMF authorization, and Zero Trust alignment.