CCSP - Cisco Certified Security Professional, CISM - Certified Information Security Manager, CISSP - Certified Information Systems Security Professional, Cloud Computing, Computer Security, Detail Oriented, DoD Directive 8140, DoD Directive 8570, DoD Information Assurance - IA, Documentation, FIPS (Federal Information Processing Standards) 199, Federal Information Processing Standards (FIPS), Government, IAM - Information Assurance Management, Information/Data Security (InfoSec), International Classification of Diseases (ICD), Internet Security, Maintain Compliance, Organizational Skills, Risk, Risk Analysis, Sensitive Compartmented Information (SCI), System Lifecycle, Systems Administration/Management, Systems Engineering, Top Secret Clearance, U.S. National Institute of Standards and Technology (NIST)
Overview
AMERICAN SYSTEMS is seeking a Senior Information System Security Officer (ISSO) to manage RMF execution, authorization, and continuous monitoring for hybrid on‑premises and cloud systems supporting classified government missions in Chantilly, VA.
This role is ideally suited for a security leader who is detail‑oriented, highly organized, and confident guiding system owners and engineers through RMF execution, authorization decisions, and ongoing compliance in classified environments.
Responsibilities
As an AMERICAN SYSTEMS Senior ISSO, you will:
- Lead RMF execution for assigned systems from categorization through continuous monitoring.
- Maintain ICD 503 and FIPS 199 security artifacts supporting system authorization.
- Develop, update, and manage ATO packages and authorization documentation.
- Conduct or oversee daily audit log reviews for anomalous activity and report findings to the Government as soon as practical.
- Coordinate risk assessments and remediation activities with engineering teams.
- Enforce security policies and ensure ongoing compliance throughout the system lifecycle.
- Serve as the primary point of contact for security reporting to the COTR, CO, and Government security authorities.
- Support audits, inspections, reciprocity efforts, and CORA activities.
- Support Privileged User Program and IA Workforce reporting requirements.
Qualifications
- Active TS/SCI clearance and current polygraph (required to be considered)
- Bachelor's degree in Cybersecurity, Information Assurance, or a related STEM field
- 10+ years of experience in RMF execution, cybersecurity compliance, and governance
- DoD 8570/8140 IAM Level III certification (e.g., CISSP, CISM, or CCSP)
- Experience managing ATO packages and supporting continuous monitoring
- Exposure to and understanding of hardening cloud assets
- Strong working knowledge of ICD 503, NIST SP 800‑53, and FIPS 199.
- Experience coordinating risk remediation across technical and operational teams.
Pay Transparency Statement
AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $155,700.00/Yr. - USD $260,000.00/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.
EEO Statement
EEO Race/Sex/Disability Status/Veteran Status
A
American Systems Corp
Founded in 1975, AMERICAN SYSTEMS is one of the largest employee-owned companies in the United States, with approximately 1,400 employees nationwide. Based in the Washington, DC, suburb of Chantilly, VA, the company provides systems engineering, technical and managed services to government and private sector customers. AMERICAN SYSTEMS was named “Contractor of the Year” at the Greater Washington Government Contractor Awards in October, 2007.