Information System Security Officer (ISSO)

Everforth ECS is seeking an Information System Security Office (ISSO) – Control Documentation & RMF to work in our Fairfax, VA office in a hybrid onsite/remote capacity.

Everforth ECS is seeking an experienced Information System Security Officer (ISSO) to support the development, documentation, and execution of the Risk Management Framework (RMF) authorization process for complex Department of Defense information systems. This individual will focus on security control documentation, control inheritance, assessment preparation, and coordination of authorization artifacts while working closely with engineering teams, common control providers, and government stakeholders.

This position requires a detail-oriented cybersecurity professional with strong technical writing skills and experience managing RMF documentation throughout the system authorization lifecycle.

Responsibilities:

• Maintain the authoritative security control inventory and associated authorization boundary documentation.
• Develop, review, and maintain System Security Plan (SSP) implementation statements.
• Coordinate security control implementation documentation across multiple technical and organizational stakeholders.
• Analyze and document inherited security controls, validating applicability and identifying implementation gaps.
• Coordinate collection of common control documentation, assessment artifacts, and supporting authorization evidence.
• Maintain evidence repositories, document version control, implementation status, and deficiency tracking.
• Support development of governance documentation, policies, procedures, and operational security documentation.
• Coordinate package reviews, assessment support activities, responses to assessor requests, and authorization package submissions.
• Track implementation status of security controls and escalate unresolved risks or documentation gaps.
• Support continuous monitoring activities and documentation updates following authorization.
• Other duties, as assigned.

Note: Salary is commensurate with skillset, qualifications, experience, and educational background.

Salary 110,000-150,000