Cyber Security ISSM - Secret

Job Description
Our client is seeking an Information System Security Manager (ISSM). This person is responsible for overseeing and managing the cybersecurity posture of assigned information systems throughout their lifecycle. This role ensures systems comply with applicable security policies, standards, and regulatory requirements while supporting risk management, authorization, and continuous monitoring activities.
Key Responsibilities

Serve as the primary security authority for assigned information systems
Lead and manage system security efforts in alignment with NIST Risk Management Framework (RMF)
Develop, review, and maintain security documentation including SSPs, POA&Ms, SARs, and risk assessments
Ensure compliance with applicable standards and regulations (e.g., NIST 800‑53, 800‑171, DoD/Federal requirements)
Support ATO/ATO maintenance activities and coordinate with Authorizing Officials
Oversee and guide ISSOs and security analysts supporting syst...