ISSO: On-Site Security for Mission-Critical Systems

Leidos is seeking an experienced Information Systems Security Officer (ISSO) to support national-security missions within a secure on-site environment. You will work with ISSMs, ISSOs, system administrators, and engineers to ensure systems remain secure, compliant, documented, and ready to support the mission.

Responsibilities include maintaining the IA posture, developing and enforcing security policies, and assisting with C&A activities under NIST RMF and DoD/ODNI guidance.