Information System Security Manager (ISSM)

If you are looking for an exciting career opportunity in the IT, engineering, software development, logistics, and project management fields, Linchpin Solutions is the place to be! We are currently hiring for a dynamic and experienced Information System Security Manager (ISSM).

Clearance: Active DoD TS/SCI Clearance

Work Schedule: Fulltime, On-site Marine Corps Base Quantico, VA; routine travel to <20%, CONUS/OCONUS

Role Overview:

The ISSM/ISSO provides enterprise-wide cybersecurity oversight, compliance management, and accreditation support for all Command and Control (C2) training networks and systems supporting both the Marine Operational Command and Control Training Team (MOCTT) and the Marine Corps Information Systems Training Centers (MISTCs). This role ensures all systems, configurations, and architectures comply with DoD, DON, MCEN, and TECOM cybersecurity standards across all MISTC sites and the MOCTT COC in Quantico.

Working closely with the Senior Systems Engineer, Systems Engineers, and Systems Administrators, the ISSM/ISSO manages RMF lifecycle documentation, risk assessments, cybersecurity inspections, and technical security controls. The ISSM/ISSO provides authoritative IA guidance during network design, curriculum-impacting system upgrades, and fielded training support, including BSTEX deployments.

General Skillset

• Strong written and verbal communication skills
• Ability to interpret and apply cybersecurity policies and directives
• Excellent organizational and document-management skills
• Strong critical thinking, analytical, and risk-assessment abilities
• Ability to work collaboratively with technical, instructional, and government personnel

Specific Skillset

• Expert knowledge of the Risk Management Framework (RMF)
• Experience with DISA STIGs, ACAS, eMASS, POA&M development, and vulnerability remediation
• Understanding of MCEN-connected and standalone enclave security requirements
• Experience securing C2 systems, tactical networks, and virtualized environments
• Ability to maintain required cybersecurity artifacts (SSP, SAR, POA&M, inventories)
• Experience coordinating with Authorizing Official (AO), SCA, IAMs, and local cybersecurity offices
• Experience with DISS, SAARs, PKI, RBAC, and user-provisioning requirements
• Familiarity with security governance for Microsoft 365, SharePoint, and Teams environments