Information System Security Manager (ISSM)

OMNI Consulting Solutions•Chantilly, VA

2d•Onsite

About The Position

OMNI Consulting Solutions is seeking for an Information System Security Manager (ISSM) to provide overall cybersecurity oversight for classified and unclassified systems. Supports RMF execution, accreditation activities, continuous monitoring, vulnerability management, and cybersecurity compliance.

Requirements

Bachelor's degree in a technical field (Computer Science, Information Technology, Cybersecurity, or related) or equivalent experience.
Active TS/SCI clearance.
Experience (10+ years) in cybersecurity/information assurance, including RMF/accreditation experience.
DoD 8570/8140 IAM Level II or III certification (e.g., CISSP, CISM, or equivalent).
Demonstrated experience managing ATO packages and engaging with Authorizing Officials.
Strong knowledge of RMF, CNSSI 1253, and applicable IC/DoD cybersecurity directives.
U.S. Citizenship required

Nice To Haves

CI polygraph.
Experience with eMASS and/or Xacta accreditation tools.
Prior experience as an ISSM supporting IC or USSF/DoD space programs.
Master's degree in a related technical field.

Responsibilities

Provide overall cybersecurity program management for assigned classified and unclassified information systems.
Oversee execution of the Risk Management Framework (RMF), including categorization, control selection, assessment, and authorization activities.
Manage the Authorization to Operate (ATO) process and maintain system security documentation (SSPs, POA&Ms, risk assessments).
Direct and oversee ISSOs and cybersecurity staff supporting assigned systems.
Oversee continuous monitoring and vulnerability management programs, ensuring timely remediation of identified risks.
Serve as the primary cybersecurity interface with the government Authorizing Official (AO) and customer cybersecurity staff.
Ensure compliance with applicable DoD/IC cybersecurity policy (e.g., DoDI 8510.01, ICD 503, CNSSI 1253).
Report cybersecurity incidents and coordinate response activities in accordance with program requirements.