Information System Security Manager (ISSM)

Information System Security Manager (ISSM)

Role Overview

Game Plan Tech is seeking an ISSM who combines deep DoW security expertise with a genuine appetite for emerging AI. This role owns the RMF lifecycle across classified systems, maintains ATO posture, and ensures the organization can move fast without compromising mission assurance.

This is not a traditional compliance role. We are deploying AI capabilities inside classified environments where the guidance is still being written. We need pathfinders — people who can read the regulations, apply sound judgment in the gaps, and chart a course where no map yet exists.

Desired Qualifications

• 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

Key Responsibilities:

RMF and Authorization

• 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

Classified AI and System Security

• 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

Pathfinding and Emerging Compliance

• 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

Stakeholder Engagement

• 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

Why Game Plan Tech?

Join a dynamic and growing team at Game Plan Tech, dedicated to empowering public sector organizations with best-in-class AI and Google solutions. We work at the frontier of what's defined — and we're looking for people who find that energizing, not uncomfortable.

Game Plan Tech is an equal opportunity employer committed to fostering a diverse and inclusive workplace. We provide equal employment opportunities to all individuals, regardless of race, color, religion, gender, gender identity, sexual orientation, national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local law. If you require reasonable accommodation during the application process or employment, please contact [email protected].