Information Systems Security Officer

General information

Requisition # R65805 Locations USA-CA-Los Angeles Posting Date 02/06/2026 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Information Systems Security Officer II to join our team in El Segundo, CA.

The ISSO’s primary function is working within Special Access Programs (SAPs) supporting SMC and AFSPC mission areas. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but are not limited to:

• Review, prepare, and update AIS accreditation packages and notify customer when changes occur that might affect AIS accreditation/certification.

• Perform AIS self-inspections, provide security coordination and review of all system test plans.

• Identify AIS vulnerabilities and implement countermeasures. Review, track, and conduct AIS training.

• Conduct security surveys at subordinate facilities and gather pertinent security documentation for inclusion into system accreditation packages.

• Maintain AIS security records and prepare Co-Utilization Agreements for network nodes operating in government facilities.

• Ensure AIS and network nodes are operated, maintained, and disposed of in accordance with security policies and practices.

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

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

Minimum Qualifications:

• Bachelor’s degree in a related field or 4 additional years of equivalent experience will be considered in lieu of degree. 

• 3+ years of related experience

• 2+ years of relevant SCI experience

• Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 2 within 6 months of the date of hire.

• Must complete training on Joint Security Implementation Guidance (JSIG) and Risk Management Framework (RMF) Information Security Continuous Monitoring (ISCM)

• Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents.

Preferred Qualifications:

• 1+ year of SAP-related experience highly desired.