**ManTech** seeks a motivated, career and customer-oriented **Program Security Officer 1 PSO 1** to join our team in **Chantilly, VA.** **Responsibilities include, but are not limited to:** + Assisting with a myriad of security issues and concerns to government and program security officers in different geographical locations + Developing skills in classification management, program security, information systems security, personnel security, contract, and physical security for the purpose of guidance to customers and industry partners + Supporting briefings and indoctrinations to a variety of audiences + Aiding the preparation of recommendations on current security issues for program security decisions to Directorate and Office Directors of Security, Program Managers, and Directorate leadership + Domestic Travel and OCONUS up to 25% **Minimum Qualifications:** + HS Diploma and 3 or more years relevant security experience or Bachelors Degree and 0 years relevant program security officer experience + Ability to participate in working high-level, complex or sensitive security issues thoroughly and with discretion + Demonstrated ability to research and identify multiple sources for classification determinations control, marking, and dissemination principles and requirements to include FOIA and Pre-publication reviews + Ability to develop a working knowledge and be able to implement Intelligence Community Directives as well as NRO Directives and Instructions **Preferred Qualifications:** + Familiarity with ICD 503 and 705 + Experience working with industrial security staffs + Understanding of NRO Security Tools and applications + Knowledge of Security Program Oversight Manual (NISPOM) security policy and procedures + Awareness of program protection methodologies and risk management principles as they relate to appropriately protecting and sharing information, missions, operations, and assets **Security Requirements:** + Must have a current/active TS/SCI w/Polygraph **Physical requirements:** + Must be able to remain in a stationary position 50% + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + Frequently communicates with co-workers, management, and customers, which may involve delivering presentations + Must be able to exchange accurate information in these situations 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.