Personnel Security Specialist

General information

Requisition # R66560 Locations USA-CA-Los Angeles Posting Date 03/10/2026 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 Personnel Security Specialist II to join our team in El Segundo, CA.

The Personnel Security Specialist’s primary function is to handle personnel security functions in support of the customer’s facility and organization. The position will provide “day-today” PERSEC services for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but are not limited to:

• Build and Maintain tracking spreadsheets/databases for customer PERSEC activities.
• Provide support for the security awareness and education programs.
• Perform miscellaneous administrative support functions as directed by the contractor site lead and/or the Government Security Representative.
• Review, track, and monitor security clearance processing activities with appropriate government personnel to achieve appropriate clearance actions.
• Conduct Defense Central Index of Investigations (DCII), Joint Personnel Access System (JPAS), and SAPNP reviews of candidates being submitted for SAP access.
• Perform data entry and record checks in the Joint Access Database (JADE) and maintain all customer sponsored personnel access information.
• Receive and/or transmit classified visit requests as necessary to meet customer needs.

Minimum Qualifications:

• Bachelor’s degree; an additional 4 years of experience may be considered in lieu of degree.
• 6 + years of related experience.
• 4 + years of relevant SCI experience.
• Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents.

Preferred Qualifications:

• 2+ years of SAP-related experience.

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%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
• Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $75,500.00-$125,600.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, MANTECH invests in its employees beyond just compensation.  MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.