Amentum is seeking a Information Systems Security Manager (ISSM) Senior to support our FEDSIM United States Army National Guard (G2 IS3) contract.

Responsibilities:

• Leads risk management efforts for ARNG Intelligence networks, systems, classified spaces, and GIS programs by developing and implementing INFOSEC policies in alignment with DoD and IC cybersecurity frameworks.
• Oversees the accreditation and compliance processes for classified systems, leveraging RMF, DIACAP, and NISCAP to maintain system security.
• Conducts threat analysis, incident response coordination, and vulnerability assessments to prevent, detect, and mitigate cyber threats in the operational environment.
• Manages the development and maintenance of System Security Plans (SSPs) and ensures all classified activities comply with DoD cybersecurity policies.
• Directs the completion of Certification and Accreditation (C&A) packages in eMASS and oversees the tracking of security milestones in Xacta.
• Provides governance and oversight for INDUSEC, INFOSEC, COMSEC, and TARP programs, delivering risk assessments and policy recommendations to ARNG G-2 leadership.
• Develops Risk Findings Reports outlining security controls and acceptable risk levels to support mission objectives.
• Executes cybersecurity impact analysis by identifying critical assets, mapping threat vectors, and implementing mitigation strategies to strengthen security postures.
• Collaborates with strategic partners to integrate cybersecurity best practices, enforce compliance, and drive improvements across intelligence networks.
• Responsible for developing and overseeing the Cybersecurity Management Plan, leading the Cybersecurity & Risk Management Working group, and participating in the Security and Compliance Center.
• Responsible for authoring the Cybersecurity Management Plan (CsMP) and Security CONOPs.
• Integrates cybersecurity, RMF, cyber RMAs, insider threat countermeasures, and accreditation artifacts.

Required:

• CISSP, CISM, CISA

• Active TS/SCI Clearance with the ability to obtain and maintain a Polygraph
• 10-15 Years with a BS/BA or MS/MA; or equivalent years of experience

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.