ManTech seeks a motivated, career and customer-oriented Program Security Officer 3 PSO 3 to join our team in the Chantilly, VA area.Responsibilities include but not limited to:Provides advice and assistance regarding a range of security issues and concerns to government and program security officers in different geographical locationsProvides classification management, program security, information systems security, personnel security, and physical security for the purpose of guidance to customers and industry partnersConduct briefings and indoctrinations to a variety of audiencesDeliver compelling and articulate recommendations on current security issues for program security decisions to Directorate and Office Directors of Security, Program Managers, and Directorate leadershipAssist in the development of security training courses, policies, and implementation proceduresDomestic Travel and OCONUS up to 25%Minimum Qualifications:HS Diploma and 12 or more years of relevant security experience or Associates degree and 10 or more years of relevant security experience or Bachelor's Degree and 8 or more years of relevant security experience or Masters/Doctorate and 6 or more years of relevant security experienceAbility to work high-level, complex or sensitive security issues thoroughly and with discretionDemonstrated ability to identify and assess multiple sources for classification determinations control, marking, and dissemination principles and requirements such as FOIA and Pre-publication reviewsSubstantive experience providing risk-managed security recommendations to program managers, in support of secure and successful mission accomplishmentFamiliarity with ICD 503 and 705Have a working knowledge and be able to implement Intelligence Community Directives or NRO Directives and InstructionsKnowledge of program protection methodologies and risk management principles as they relate to appropriately protecting and sharing information, missions, operations, and assetsPreferred Qualifications:Ability to assist the government in the NRO Integrated Security Assessment Program (ISAP)Experience working with industrial security staffsWorking knowledge of acquisition lifecycle security requirementsSecurity Program Oversight Manual (NISPOM) security policy and proceduresSecurity Requirements:Must have a current/active TS/SCI w/PolygraphPhysical 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 presentationsMust be able to exchange accurate information in these situations