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From the employer's careers site First seen 6 Nov 2026

Information Systems Security Officer (Level 3)

GDIT Lompoc, CA On-site senior full-time

Salary

$107,744 - $132,940 per year

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Description

The Information Systems Security Officer (Level 3) is responsible for ensuring the appropriate operational security posture is maintained for an information system.

Key Responsibilities:

  • 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.

Requirements:

  • 5+ years related experience.
  • 2+ years Special Access Program (SAP) experience required.
  • Prior performance in roles such as System, Network Administrator or ISSO.
  • Bachelor’s degree OR Associate’s degree in a related area + 2 years’ experience OR equivalent experience (4 years).
  • IAT Level II or IAM Level II - within 6 months of hire (Security+ CE, CCNA Security, etc).
  • TS/SCI required.
  • Must be able to Attain – TS/SCI with CI Polygraph.

Benefits:

  • 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 holiday

Skills

Required

Apply on GDIT