ManTech is currently seeking a motivated, career and customer-oriented **Personnel Security Specialist** to join our team in **San Antonio, TX.** The Personnel Security Specialist, Senior primary function is working within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies, such as HQ Air Force, Office of the Secretary of Defense (OSD) and Military Compartments efforts. 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:** + Review, track, and monitor security clearance processing activities with appropriate government personnel to achieve appropriate clearance actions + Assist in defining, interpreting, and implementing program security policy within the Center. + Provides security policy interpretation concerning the Special Access Program Nomination Process (SAPNP). + Reviews and comments on security operating instructions, security plans, guides, and various security related correspondences. + Reviews and comments on security support, operating instructions and security adequacy in plans, guides, and various correspondence. + Directly supports government program offices and Program Security Officers in the development, execution and implementation of personnel security issues. + Participates in Air Force SAP security compliance inspections of government organizations and industry + Reviews incoming Program Access Request (PARs) for accuracy and access eligibility and processes them to the next level of approval. + Conducts Defense Central Index of Investigations (DCII) reviews and Defense Information System for Security (DISS) reviews + Executes the SAPNP Questionnaire + Performs data entry and record checks in the Joint Access Database Environment (JADE) and maintains all customer sponsored personnel access information current + Must complete the DoD SAPCO approved SAPNP training. **Basic Qualifications:** + Bachelor’s degree in a related area or a minimum of three (3) years of working security experience in a multi-level SAP and SCI classified security environment. + Detailed knowledge of the Defense Security Service (DSS) clearance process and a keen understanding of the intelligence community and SAP processes + Working-level knowledge of applicable security policy manuals, and other policy documents + Working-level knowledge of the Electronic Personnel Security Questionnaire (EPSQ) software + Working-level knowledge of the DoD Contract Security Classification Specification (DD-254) process + Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners **Security Clearance Requirements:** + Active Top Secret Clearance with SCI Eligibility + Willingness to submit to Polygraph + Eligibility for access to Special Access Program Information. **Physical Requirements:** + Requires travel within the organizational geographic Area of Responsibility (AOR) (note - could be extensive, and will include both air and ground transportation) + Must be able to be in a stationary position more than 50% of the time + Must be able to communicate, converse, and exchange information with peers and senior personnel + Constantly operates a computer and other office productivity machinery ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.