Information System Security Manager (ISSM)

Description

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 

Requirements

Education & Certifications

• Bachelor’s degree in Cybersecurity, IT, Computer Science, or related field 
• DoD 8570.01-M IAT Level III certification required (e.g., CISSP, CASP+, CCNP Security, GCIH, GCED) 
• IAM Level II/III certification preferred 

Experience Requirements

• Minimum 8+ years of experience in DoD cybersecurity, RMF, IA, or security engineering 
• Experience supporting Marine Corps or Joint cybersecurity programs preferred 
• Experience securing networks used for training, operational support, or mission rehearsal environments desirable 

Role Integration

The ISSM/ISSO is fully integrated into the MISTC Headquarters enterprise and directly supports the MOCTT & MISTC C2 Systems and Computer Networks mission. 

Key relationships include: 

• MOCTT Lead/PM-Provides top-level oversight and program direction; the ISSM/ISSO ensures all systems remain compliant with programmatic IA/security requirements under the PM’s purview. 
• Corporate Quality Manager-Works closely with the ISSM/ISSO to integrate IA/security compliance into the Quality Management System (QMS), including audits, corrective actions, and continuous improvement initiatives. 
• Senior Systems Engineer-Coordinates on system design, secure configurations, network changes, and architectural updates to ensure cybersecurity is built in at every stage. 
• Systems Engineers and Administrators – Provides daily direction on vulnerability remediation, patching, baseline management, access control, and secure operations. 
• MISTC Site Leads-Ensures each site’s local network activities adhere to enterprise security policy and RMF controls. 

 Core responsibilities include: 

• Overseeing RMF compliance for all MOCTT/MISTC C2 training networks 
• Ensuring every architecture, system update, or configuration change meets MCEN and DoD cybersecurity requirements 
• Maintaining IA/security documentation and continuous monitoring packages across the enterprise 
• Developing and executing cybersecurity inspection readiness, audit support, and incident-response