Sr. Information Systems Security Officer (ISSO)

Job description

We’re seeking a Senior Information Systems Security Officer (Sr. ISSO) to support a mission-critical program in Annapolis Junction, MD: . In this role, you'll oversee the security posture of classified systems, enforce cybersecurity policies, and guide compliance efforts under DoD RMF and NIST standards. Ideal candidates bring deep ISSO experience in DoD or IC environments and are ready to lead in a high-security, high-impact setting. Key Responsibilities: Maintain the operational security posture for assigned systems, ensuring compliance with established policies and procedures. Coordinate, implement, and enforce cybersecurity standards, methodologies, and system security policies. Assist in day-to-day security operations and system administration duties. Evaluate and recommend security tools and solutions that meet classified information protection requirements. Conduct vulnerability and risk assessments to support accreditation and security decisions. Lead efforts in preparing security documentation including SSPs, SRTMs, Risk Assessment Reports, and C&A packages. Manage configuration changes and assess security impacts of modifications to systems. Support authorization activiti...