Senior Cyber Defense Administrator – TS/SCI, CI Poly

Nightwing is seeking a Senior Security Administrator to protect mission-critical systems and sensitive information at our Annapolis Junction, Maryland location. This role requires an active TS/SCI CI Poly clearance and a track record of operating with minimal oversight in high-visibility environments, delivering deep technical enterprise security expertise. You will lead enterprise security design and implementation, guide policy development, and mentor junior staff while ensuring compliance