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General information

Requisition #
R60091
Locations
USA-CA-El Segundo
Posting Date
04/30/2025
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 Active Security Representative III to join our team in the El Segundo, CA area.

The Activity Security Representative’s primary function is to provide multi-disciplined security support to a customer’s facility and organization. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but not limited to:

  • Classification reviews of inbound and outbound correspondence

  • Assist in the maintenance of a document accountability database and associated correspondence

  • Processing inbound and outbound classified mail and receipt records

  • Perform destruction of classified materials

  • Reproduction support for classified materials

  • Maintain various daily logs for a variety of administrative functions associated with document control

  • Assist with researching, processing, filing, and maintaining inbound and outbound visit notices

  • Perform data entry to the Personnel Access Security System database and maintain all customer sponsored billets and quota information

  • Assist in maintaining personnel security files for all personnel of the supported element.

  • Must complete the DoD SAPCO approved SAPNP training

  • Must complete Joint Access Database Environment (JADE) training. 

  • Must Complete JPAS training within six months of starting on contract if performing SCI personnel security functions      

Minimum Qualifications:

  • Bachelor’s degree or 4 additional years of relevant experience in lieu of degree

  • 10+ years of related experience

  • 3+ years’ experience with SCI or SAP programs

  • SIMS database familiarity or complete training within six months of starting on contract

Clearance Security 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


The projected compensation range for this position is $138,700.00-$231,400.00. 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 it’s 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 International Corporation 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.