Senior DoD Information Security Manager – RMF & ATO Lead

Cornerstone Defense LLC is seeking a Senior Information System Security Manager to oversee the cybersecurity posture of DISA systems. You will manage the RMF lifecycle, develop security policies, and coordinate with cross-functional teams to ensure DoD standards are met. The role requires DoD security expertise, strong communication, and the ability to lead governance activities across system architectures and IA compliance objectives.