Security Administrator

General information

Requisition #

R71614

Locations

USA-VA-Stafford

Posting Date

10/22/2026

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 client-oriented SECURITY ADMINISTRATOR to join our team in STAFFORD, VA.

In this position you will play a key role in maintaining daily physical, personnel, and document security operations to ensure full compliance with IC government regulations and customer Standard Operating Procedures. Primary duties include managing access control, processing clearance paperwork, handling classified materials, producing security-related documentation, and providing general administrative and event security support.

Responsibilities include but are not limited to:

• Lead security initiatives independently as a senior individual contributor by leveraging deep subject matter expertise to solve complex problems, optimize operational practices, and provide security-related guidance to clients, cross-functional teams, and colleagues.
• Maintain facility compliance with government physical security requirements, oversee entry and exit inspections, operate access control systems, and issue facility badges.
• Manage personnel security files, track clearance actions, and process access requests and reportable personal security information in accordance with IC regulations (e.g., ICD 704).
• Research, process, and file inbound and outbound visit notices, maintain visitor logs, and provide facility escort duties.
• Support security awareness and education programs to include developing and maintaining comprehensive security standard operating procedures outlining the security policies/guidance for conducting classified activities within sensitive compartmented information facilities.
• Provide ad hoc security support for large conferences, program exercises, and designated site activities to include after-hours support when necessary to maintain site integrity.
• Deliver responsive customer support and coordinate administrative security requirements with government task managers, contractor program managers, and site leadership.

Minimum Qualifications:

• Bachelor's degree at least 2 years of experience in physical security or a related discipline, demonstrating comprehensive knowledge of standard security concepts, practices, and procedures or at least 9 years' experience without a degree.
• Demonstrated experience identifying, applying, and adhering to DoD, Service-level, and Intelligence Community standards and directives (e.g., ICD 704 and DoDM 5205.07 series), alongside operational proficiency with security information systems such as DISS.
• Strong written, verbal, and interpersonal communication skills, with a proven ability to document standards, convey expectations, and collaborate and interface effectively with senior government personnel across officer, enlisted, and civilian ranks.
• Experience protecting personnel, physical assets, and corporate facilities from harm by developing and implementing government-compliant security policies, providing security oversight, and managing security responses as needed.
• Demonstrated ability to operate independently and within collaborative team environments, supported by proficiency in Microsoft Office, Visio, SharePoint, and Project.
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Preferred Qualifications:

• Familiarity and experience with supporting SAP/ CAP security requirements and facilities.
• Current CI Polygraph

Clearance Requirements:

• Must have a current and active TS/SCI security clearance

Physical Requirements:

• Physically capable of supporting field exercises, including lifting up to 50 lbs., traversing rugged terrain, and traveling via military tactical vehicles, ships, and aircraft.
• Must be able to remain in a stationary/ desk position 50% of the time, occasionally and communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve clearly delivering briefings/ presentations.

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.