Senior Information System Security Officer (TS/SCI)

A leading defense contractor based in Fairfax, VA, is seeking a Senior Information System Security Officer (ISSO) to support the DoD/DoW Advana War Data Platform. The ISSO will manage daily cybersecurity operations, ensure compliance with technical security controls, and respond to incidents. Applicants must have substantial experience in cybersecurity, relevant certifications, and an active security clearance. This role involves maintaining mission assurance and operational readiness, contributing to national defense efforts. J-18808-Ljbffr