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Activity Security Representative

ManTech International

Company : ManTech International

Location : El Segundo, CA

Posted Date : 4 October 2025

Job Details

Activity Security Representative II

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 nowprotect and innovate with MANTECH!

ManTech seeks a motivated, career and customer-oriented Activity Security Representative II to join our team in El Segundo, CA.

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 are not limited to:

  • Assist in the maintenance of a document accountability database and associated correspondence.
  • Implement Top Secret Control for accountable material and associated correspondence.
  • Prepare and/or process inbound and outbound classified mail, faxes, courier packages and receipts.
  • Prepare, process, and/or review Program Access Request (PARs) for accuracy and access eligibility.
  • Execute Special Access Program Nomination Process Questionnaires
  • 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 maintains all customer sponsored personnel access information current.

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.
  • 3 + years of experience with SCI or SAR programs.
  • Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents

Preferred Qualifications:

  • 1+ year relevant experience with SAR programs desired.
  • Working knowledge of Microsoft Office (Word, PowerPoint, and Excel)

Clearance Requirements:

  • Current Top Secret Clearance with SCI Eligibility
  • Eligibility for access to Special Access Program Information
  • Willingness to submit to a Counterintelligence 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 $112,400.00-$186,500.00. 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 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 and provide your name and contact information.

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