Information Systems Security Officer (ISSO) III

General Dynamics Information Technology
San Antonio, TX
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

The Information Systems Security Officer (ISSO) III is responsible for ensuring the appropriate operational security posture is maintained for an information system and as such, works in close collaboration with the ISSM and ISO. The position shall have the detailed knowledge and expertise required to manage the security aspects of an information system and, in many organizations, is assigned responsibility for the day-to-day security operations of a system.

This will include physical and environmental protection, personnel security, incident handling, and security training and awareness. It will be required to work in close coordination with the ISSM and ISO in monitoring the information system(s) and its environment of operation to include developing and updating the authorization documentation, implementing configuration management across authorization boundaries. This will include assessing the security impact of those changes and making recommendation to the ISSM. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Performance shall include:
  • 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, to include security coordination and review of all system assessment plans.

  • Identify cyber security vulnerabilities and assist with the implementation of the countermeasures for them.

  • Prepare reports on the status of security safeguards applied to computer systems.

  • Perform ISSO duties in support of in-house and external customers.

  • Conduct continuous monitoring activities for authorization boundaries under your preview.

  • Assist Department of Defense, National Agency and Contractor organizations with the development of assessment and authorization (A&A) efforts.

Experience:

  • 5+ years related experience.

  • 2+ years SAP experience required.

  • Prior performance in roles such as System, Network Administrator or ISSO.


Education:

  • Bachelor’s degree OR Associate’s degree in a related area + 2 years’ experience OR equivalent experience (4 years)


Certifications:

  • Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level II or Information Assurance Manager II within 6 months of the date of hire


Clearance Required to Start:

  • TS/SCI required

  • Must be able to Attain – TS/SCI with CI Polygraph

GDIT IS YOUR PLACE:

  • 401K with company match

  • Comprehensive health and wellness packages

  • Internal mobility team dedicated to helping you own your career

  • Professional growth opportunities including paid education and certifications

  • Cutting-edge technology you can learn from

  • Rest and recharge with extra paid vacation and holidays


#AirforceSAPOpportunities

Work Requirements

Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

GSEC: GIAC Security Essentials Certification - Global Information Assurance Certification (GIAC) - Global Information Assurance Certification (GIAC)

GICSP: Global Industrial Cyber Security Professional - Global Information Assurance Certification (GIAC)

Cisco Certified Network Associate (CCNA) Security - Cisco - Cisco

Travel Required

10-25%

Citizenship

U.S. Citizenship Required

Posted 2026-07-31

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