Information System Security Manager (ISSM)

Information System Security Manager (ISSM)Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face.We are seeking a highly skilled and innovative Information System Security Manager (ISSM) to join our team in the greater DMV area, supporting the Army National Guard.ResponsibilitiesOversee cybersecurity posture for multiple systems or an enterprise segment as the ISSM, directing ISSOs and technical teams in implementing RMF, FISMA, and DoD/Army policies.Define security strategies, risk tolerance application, and controls implementation approaches aligned with the Cybersecurity Strategy Plan, CsMP, and RMF Plan.Review and approve ISS documents, system security plans (SSPs), POA&Ms, incident response plans (IRPs), and compliance reports; brief leadership on risk, accreditation timelines, and inspection readiness.Coordinate with ARNG, RCC-ARNG, ARCYBER, USCYBERCOM, and other authorities on significant issues, incident reporting, and enterprise-wide process improvements.Provide authoritative guidance on control implementation, continuous monitoring, configuration management, and evidence collection for authorization packages.Lead security risk assessments, vulnerability remediation prioritization, and validation of mitigation effectiveness across assigned systems.Manage security governance activities, training/awareness for security personnel, and oversight of security operations supporting accreditation and audits.Drive improvements to security processes, produce decision-grade security artifacts, and mentor ISSO/technical staff.Qualifications5 years with BS/BA; 3 years with MS/MA; 0 years with PhDClearance: Active TS/SCI clearance.Candidate must meet ONE of the following:Master's degree or Ph.D. in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, Software Engineering, or a related field; ORRelevant DoD/military training (examples: 4C-FA26A; M09CHN1; A-531-0009; Information Systems Security Manager (Advanced) Playlist); ORRelevant professional certification or equivalent experience (examples: CISM, CISSP, CISSP-ISSMP, FITSP-M, GCIA, GCIH, GICSP, GSLC).Required experience and skills:Cybersecurity experience with ISSM/ISSO or senior security leadership roles supporting DoD or large enterprise environments.Deep knowledge of RMF/ATO lifecycle, NIST SP 800-53 control families, FISMA, DISA STIGs/SRGs, continuous monitoring, and eMASS/RMF evidence workflows.Proven ability to produce and approve authorization artifacts (SSP, SAR, POA&M), manage accreditation timelines, and brief senior leadership on security posture and residual risk.Strong incident coordination experience, understanding of chain-of-custody, reporting channels, and coordination with higher authorities (ARCYBER/USCYBERCOM).Excellent stakeholder engagement, governance facilitation, and mentoring skills for security teams.Desired:Prior ARNG/DoD ISSM experience and familiarity with enterprise security strategy/planning (CsMP).Experience integrating security with DevSecOps, cloud authorization, and cross-domain solutions.Advanced certifications (CISM, CISSP-ISSMP, FITSP-M) and demonstrated track record managing complex authorization packages and inspection readiness.Target Salary Range: $86,000 - $138,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at Statements: The application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. By applying to this job, you are expressing interest in the role and the Company. During the review of your application, you may be required to participate in an on-camera interview, as well as participate in a process to verify your identity.EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.