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Information System Security Manager – ISSM
Game Plan TechISSM managing RMF lifecycle across classified systems for Game Plan Tech. Overseeing AI security posture in classified environments while ensuring regulatory compliance with evolving guidance.
Tech Stack
Tools & technologiesCloudTypeScript
About the role
Key responsibilities & impact- Own the full RMF lifecycle from system categorization through ATO and continuous monitoring
- Author and maintain SSPs, POA&Ms, SARs, and SCTM documentation
- Coordinate with government AOs, SCAs, and ISSOs across programs
- Manage NIST SP 800-53 control implementation, testing, and evidence collection
- Govern the security posture of AI and ML systems operating within classified enclaves
- Assess novel risks introduced by LLMs and agentic workflows in DoW environments
- Apply DISA STIGs and DoW cloud SRG requirements across IL4–IL6 deployments
- Support JSIG and ICD 503 requirements where SAP/SCI accreditation applies
- Interpret evolving guidance — CMMC 2.0, NSM-8, DoW AI Ethics Principles — and translate into action before it becomes mandatory
- Define security approval pathways for AI tools where none yet exist
- Build lightweight security review processes that enable engineering teams rather than blocking them
- Serve as the primary liaison with government ISSOs, AOs, and DCSA representatives
- Communicate risk clearly to non-security audiences including engineers and program leads
- Mentor junior ISSOs and build security-awareness culture across the organization
Requirements
What you’ll need- 5+ years as an ISSM or ISSO on DoW classified programs
- End-to-end RMF experience per NIST SP 800-37, including ATO package preparation
- Fluency in NIST SP 800-53 control families and NIST SP 800-171 CUI handling
- Hands-on experience with eMASS or XACTA and DISA STIG compliance tooling
- Active TS/SCI clearance; CI Polygraph preferred
- DoD 8140 IAM Level III certification (CISSP, CAP, CISM, or CASP+)
- Genuine curiosity about AI and enthusiasm for what it makes possible in the national security mission.
Benefits
Comp & perks- Equal employment opportunities for all individuals
- Reasonable accommodation offered during application process
ATS Keywords
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Hard Skills & Tools
RMF lifecycleNIST SP 800-53NIST SP 800-37ATO package preparationDISA STIGsCMMC 2.0NIST SP 800-171AI securityrisk assessmentsecurity review processes
Soft Skills
communicationmentoringcollaborationrisk managementproblem-solvingleadershiporganizational skillscuriosityadaptabilityculture building
Certifications
TS/SCI clearanceCI PolygraphDoD 8140 IAM Level IIICISSPCAPCISMCASP+