Information Systems Security Officer ; ISSO

At System High Corporation-a Top Washington-Area Workplace, a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Index 3-Star Employer, we protect and advance the nation’s most critical missions. As part of our team, you will tackle complex security challenges across SAP, SCI, and Collateral programs. If you are driven by national security, innovation, and integrity, we want to hear from you.

The ISSO is responsible for ensuring an appropriate operational security posture is maintained for an information system and works in close collaboration with the ISSM and ISO. The position requires detailed knowledge and expertise to manage the security aspects of an information system, including physical and environmental protection, personnel security, incident handling, and security training and awareness. You will monitor the system(s) and its environment, develop and update authorization documentation, implement configuration management across authorization boundaries, assess the security impact of changes, and coordinate with the ISSM on recommendations.

The primary function is working within Special Access Programs (SAPs) supporting DoD agencies such as HQ Air Force, Office of the Secretary of Defense, and Military Compartments. The role provides “day‑to‑day” support for Collateral, SCI, and SAP activities.

• Assist the ISSM in meeting their duties and responsibilities
• Prepare, review, and update authorization packages
• Ensure approved procedures are in place for clearing, sanitizing, and destroying various types of hardware and media
• Notify ISSM when changes occur that might affect the authorization determination of the information system(s)
• Conduct periodic reviews of information systems to ensure compliance with the security authorization package
• Coordinate any changes or modifications to hardware, software, or firmware of a system with the ISSM and AO/DAO prior to the change
• Monitor system recovery processes to ensure security features and procedures are properly restored and functioning correctly
• Ensure all IS security‑related documentation is current and accessible to properly authorized individuals
• Ensure audit records are collected, reviewed, and documented (to include any anomalies)
• Attend required technical and security training (e.g., operating system, networking, security management) relative to assigned duties
• Execute the cyber security portion of the self‑inspection, including security coordination and review of all system assessment plans
• Identify cyber security vulnerabilities and assist with the implementation of countermeasures
• Prepare reports on the status of security safeguards applied to computer systems
• Perform ISSO duties in support of in‑house and external customers

• 1–2 years related experience
• Prior performance in roles such as System or Network Administrator

• Bachelor’s degree or equivalent experience (4 years)

• Must meet position and certification requirements outlined in DoD Directive 8570.01‑M for Information Assurance Technician Level I (IAT I) or Information Assurance Manager I (IAM I) within 6 months of the date of hire

• Current Top‑Secret Clearance with SCI Eligibility
• Eligibility for access to Special Access Program Information
• Willingness to submit to a Counterintelligence polygraph

• Must be able to regularly lift up to 50 lbs.

• This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties, and/or responsibilities that are required for this position that are not listed in this job description.
• In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.

• System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law. We are proud to be an equal opportunity workplace.
• If you require a reasonable accommodation to apply for a position with us, please email