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Senior Security Manager - Tysons, VA

M.C. Dean
United States, Virginia, Tysons
1765 Greensboro Station Place (Show on map)
Feb 05, 2026
Overview About M.C. Dean M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration. Why Join Us? Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values-agility, expertise, and trust-we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries. Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active Top Secret/SCI with Poly is required Responsibilities The Facility Security Officer will report to the Vice President of Corporate Security and ensure compliance with DoD and Intelligence Community Security Directives. Essential responsibilities and activities include but are not limited to: Initiating, reviewing, and processing Personnel Security Clearances and Periodic Reinvestigations. Submitting requests and maintaining accounts for processing SCI security clearances using the Army's Automated Contractor Automated Verification System (ACCS). Preparing Visit Authorization Requests (VARs). Managing internal team of security administrators Performing badging functions including for satellite offices and job sites. Processing Common Access Card (CAC), DBIDS, and other badge requests. Communicating Clearance status updates to Project Managers and other individuals within organization. Performing security briefings/debriefings (SF 312, NATO, new employees, and employee terminations etc.) Submitting electronic fingerprints through SWFT. Managing document control database for all classified material per the NISPOM and contractual requirements. Reviewing employee background screening results and providing pass/fail determinations. Reviewing access control system and maintain employee/visitorbadges and access control cards. Maintaining facility clearance records (SF 328, KMP list, etc.). Assisting with preparing DD254. Preparing for DCSA and other government inspections. Qualifications Required Progressive Experience: Security, Government or Industry Experience. Proficiency in DISS,NBIS,NISS, ACCS and other security databases Understanding of the32CFR117 National Industrial Security Program Operating Manual Rule (NISPOM Rule). Familiarity with SIMS COMSEC experience Strong understanding of NISPOM 3 FSO Certification for Processing Facility completion. Requires absolute discretion, demonstrated judgement, problem resolution skills, and a background of working in a multidisciplinary team environment. Strong oral, written, and presentation skills and the ability to relay technical information to others. Demonstrated time management and organization skills to meet deadlines and quality objectives. Strong MS Excel, Word and PowerPoint Skills is a plus. Work and Travel Requirements: Will be required to work at our Tyson's, VA HQ location with minimal travel required Years of Experience Shall have a Bachelor of Science degree with a minimum of ten (10) year of relevant security experience. Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active Top Secret/SCI with Poly is required Abilities: Exposure to computer screens for an extended period of time. Sitting for extended periods of time. Reach by extending hands or arms in any direction. Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard. Listen to and understand information and ideas presented through spoken words and sentences. Communicate information and ideas in speaking so others will understand. Read and understand information and ideas presented in writing. Apply general rules to specific problems to produce answers that make sense. Identify and understand the speech of another person.