Information System Security Officer (ISSO) (Onsite)

Date Posted:

2025-09-30

Country:

United States of America

Location:

CA622: AST 160N Riverview Anaheim Hil 160 North Riverview Drive Suite 150, Anahiem Hills, CA, 92808 USA

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

Security Clearance:

Secret - Current

The Collins Applied Signal Technology (AST) Security organization is seeking an Information System Security Officer (ISSO) to join our team in Anaheim Hills, CA who strives for excellence and has a passion for enhancing national security. AST delivers trusted SIGINT solutions to secure U.S. interests, specializing in broadband communications, signal processing, tactical SIGINT, and wireless communications. Our engineers tackle challenging problems, making the world safer. The dynamic, collaborative environment at AST encourages skill development, creative thinking, and close collaboration with top service members, all while upholding integrity, innovation and work-life balance.

In this role, you will report locally to the AST IA Section Manager in Anaheim Hills and perform the functions of an Information Systems Security Officer (ISSO) for Applied Signal Technology information systems and networks. You will support a multi-faceted customer base, including DOD and Special Program Access.

 This is an ONSITE position located at our Anaheim Hills, CA location.  To find out more about AST please, click the link below: Applied Signal Technology: WHO WE ARE

What You’ll Do

• Coordinate and collaborate with the local Industrial Security Team at this location

• Support day-to-day cybersecurity governance and operations for AST classified information systems and networks spanning DoD, SPECIAL PROGRAM ACCESS/SAR, and SCI programs. You’ll help implement JSIG/DAAPM/ICD-503 requirements, maintain A&A artifacts, drive continuous monitoring, and collaborate with technical teams to keep systems compliant and mission-ready.

• Execute RMF/JSIG tasks: maintain SSPs and supporting artifacts (e.g., inventories, SCTMs, diagrams, CONOPS), contribute to assessment packages, and track POA&Ms.

• Perform recurring security operations: account lifecycle and access reviews, audit/log reviews (e.g., SIEM), vulnerability scanning and remediation tracking, patch/ver control checks, and media control/sanitization.

• Coordinate security change control: review proposed changes, ensure baselines remain hardened (STIG/SCAP), and document configuration management decisions.

• Conduct and support security briefings, self-inspections, incident triage/reporting, and external assessments (e.g., DCSA/SPECIAL PROGRAM ACCESS).

• Partner with PMs, network and system engineers to ensure classified system architectures remain compliant and risk appropriate.

• Maintain virus/EDR definitions, support whitelisting/exception processes, and assist with forensic data preservation when required.

• Travel occasionally to other AST locations as needed up to 15%

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience

• 2 years in IT or cybersecurity (helpdesk, sysadmin, security analyst/engineer) with exposure to RMF/JSIG or similar governance processes.

• Working knowledge of OS security (Windows and Linux—Rocky 8/9 a plus) and networking basics (TCP/IP, VLANs, firewalls).

• Hands-on with at least one: vulnerability scanning (e.g., ACAS/Nessus or Rapid7), STIG Viewer/SCAP, SIEM (e.g., Splunk), endpoint protection/EDR, or PKI.

• DoD 8570 IAM Level I (Security+ CE or equivalent) or ability to obtain within 6 months of hire.

• Active and transferable Secret U.S. government issued security clearance is required prior to start date.

• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer: 

• Bachelors in Cybersecurity/IT/CS or related field; or equivalent experience

• Prior experience as an ISSO/ISSM or direct support to A&A (e.g., eMASS or equivalent toolsets).

• Familiarity with NISPOM, DAAPM, JSI