Security Administrator

Markon

Security Administrator providing personnel security and access control support for an Intelligence Community customer. Ensuring compliance with security regulations and managing security records in a fast-paced environment.

Posted 4/7/2026full-timeChantilly • Virginia • 🇺🇸 United StatesJuniorMid-Level💰 $100,000 - $115,000 per yearWebsite

Tech Stack

Tools & technologies

TypeScript

About the role

Key responsibilities & impact

Support the Customer’s Area Security Team in administering personnel security, visitor access, and clearance management requirements.
Initiate, track, and maintain security actions, including updates within customer security systems and databases.
Verify, maintain, and facilitate personnel clearance information in authorized systems.
Process and manage building access requests, visitor certifications, and clearance verifications in accordance with established protocols.
Maintain accurate security records and documentation, ensuring compliance with customer security standards.
Ensure vendors and project teams are informed of security policies, reporting requirements, processes, and compliance actions.
Respond to inquiries and provide guidance on security processes, timelines, and issue resolution.
Process additional security-related requests, including worker vetting, access control actions, and operational security requirements.
Provide surge support for construction and project-related security matters, as needed.
Ensure personnel are apprised of security updates, procedures, and requirements.
Support compliance with applicable security regulations and policies while safeguarding sensitive information.

Requirements

What you’ll need

Active TS/SCI clearance with Full Scope Polygraph (FSP) required.
Bachelor’s degree in any field.
A high school, vocational, or trade school diploma plus 5 years of relevant experience may be substituted.
Minimum of 2 years of experience in security administration supporting the U.S. Government.
Experience managing personnel security, clearance verification, and access control processes.
Excellent written and verbal communication skills, with strong customer service experience.
Strong attention to detail and organizational skills.
Ability to handle sensitive information with discretion and accuracy.
Ability to manage multiple tasks and maintain accurate records in a fast-paced environment.

Benefits

Comp & perks

Medical
Dental
Vision
Life Insurance
Short-Term Disability
Long-Term Disability
401(k) match
Flexible Spending Accounts
EAP
Training and Tuition Assistance
Paid Time Off
Holidays

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

personnel securityclearance managementaccess controlsecurity administrationsecurity records managementsecurity compliancevetting processesissue resolutiondocumentation managementsecurity protocols

Soft Skills

communication skillscustomer serviceattention to detailorganizational skillsdiscretionaccuracymultitaskingproblem-solvingguidance provisiontimeliness

Certifications

TS/SCI clearanceFull Scope Polygraph (FSP)Bachelor's degreehigh school diplomavocational diplomatrade school diploma