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Los Angeles, CA Full Time Posted by: ManTech Posted: Wednesday, 28 January 2026
 
 

MANTECH is seeking a motivated, career and customer-oriented Cybersecurity System Security Engineer I to join our team in El Segundo, CA.

The Cybersecurity System Security Engineer's primary function is working within Special Access Programs (SAPs) supporting SSC and AFSPC acquisition programs. The position will provide day-to-day support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities to meet NIST Cybersecurity requirements for system assessment & authorization.

Responsibilities include but are not limited to:

  • Perform oversight of the development, implementation and evaluation of information system security program policy; special emphasis placed upon integration with existing SAP network infrastructures.

  • Support a team of System Security Engineers and Certification and Accreditation Analysts responsible for ensuring the customers national and international security interests are protected as support equipment are designed and tested.

  • Support customer and SAP community IA working groups, participate in SSE IPT reviews.

  • Provides expert level consultation and technical services on all aspects of Information Security.

  • Review SSE related designs, provide security compliance recommendations, and develop and provide IA risk management recommendations to the customer.

  • Provide SSE support for Mission and Training systems design and development.

  • Assist with development and maintenance of the Program Protection Plan, Cybersecurity Strategy, site activation activities and design reviews.

  • Represent the Government Program Manager in various SSE related working groups, advisory groups, and advisory council meetings.

Minimum Qualifications:

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

  • 6 + years of relevant experience.

  • 2 + years of experience with SCI.

  • Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 2 and Information Assurance Manager Level 1 within 6 months of the date of hire.

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

  • Familiarity with Risk Management Framework (RMF) and Joint SAP Implementation Guide (JSIG) processes for system accreditation, along with Legacy (DISTSCAP, DIACAP) processes.

  • Willingness to travel within the organizational Area of Responsibility (AOR) (note - could be extensive, and will include both air and ground transportation)

Preferred Qualifications:

  • 1+ year of SAP relevant experience highly desired.

  • Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners.

  • Working knowledge of Microsoft Office (Word, PowerPoint, and Excel).

  • Possess a high degree of originality, creativity, initiative requiring minimal supervision.

Clearance Requirements:

  • Current Top Secret Clearance with SCI Eligibility.

  • Eligibility for access to Special Access Program Information.

  • Willingness to submit to a polygraph.

Physical Requirements:

  • Must be able to remain in a stationary position 50%.

  • The person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations.

  • Must be able to exchange accurate information in these situations.

  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

Los Angeles, CA, United States of America
IT
ManTech
Click apply
JS7457466627005583510
1/28/2026 7:42:28 AM
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