Program Security Assistant

General information

Requisition # R66405 Locations USA-VA-Chantilly Posting Date 03/03/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated and detail-oriented Program Security Assistant to join our team in Chantilly, VA.

In this role, you will provide administrative and operational support to Government security officers, contributing directly to the execution of mission-critical security operations. You will help ensure smooth access processing, clearance coordination, and program support across security functions.

Responsibilities include but are not limited to:

• Process access requests ensuring proper security paperwork is prepared and submitted

• Support resolution of access and clearance issues through research of NRO and community databases and updates to Government-managed systems

• Maintain and update program security files and associated databases

• Plan, organize, and implement procedures to protect government security records, including contractor security plans, contact files, classification guides, correspondence, and compartmented documentation

• Provide ad hoc security support to large conferences and other program activities as directed by the Government PSO

• Support daily document handling and couriering functions for both classified and unclassified materials in accordance with executive directives and orders

• Domestic travel up to 25%

Minimum Qualifications:

• Bachelor’s degree with 2+ years of relevant experience, or High School diploma/GED with 6+ years of relevant experience

• Familiarity with personnel security processes, including documentation and handling of reportable information

• Experience supporting program security in a customer service capacity

• Knowledge of in-processing and out-processing tasks such as Account Action Process Requests, Badge Requests, Suite Access Requests, SCI indoctrinations/debriefings, and security briefings

• Demonstrated experience interfacing with military, civilian, and contractor personnel at all levels

Preferred Qualifications:

• Working knowledge of Intelligence Community clearance processing procedures and associated databases

• Proficiency with Microsoft Office applications

• Experience supporting SCI and SAPs across legacy and evolving programs

• Familiarity with IC and DoD security policies, procedures, and operating instructions

• Strong written and verbal communication skills

• Proven ability to work independently, prioritize tasks, and operate in fast-paced environments

• Excellent interpersonal skills and discretion in handling sensitive personal information

Clearance Requirements:

• Must have a current/active TS/SCI with Polygraph

Physical Requirements:

• Must be able to be in a stationary position more than 50% of the time

• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations

• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

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.