Security Admin - Tysons, VA

About M.C. Dean

M.C. Dean is a Building Intelligence company that designs, builds, operates, and maintains cyber-physical solutions for mission‑critical facilities, secure environments, complex infrastructure, and global enterprises. With more than 7,000 employees, we specialize in electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Our headquarters are in Tysons, Virginia, and we deliver resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Ability to obtain and maintain a DoD TS clearance with SCI eligibility. Active clearance within the last 24 months is preferred. DoD reciprocal clearances after verification are not considered.

• Serve as an escort within restricted spaces.
• Review and maintain access‑control systems.
• Issue and monitor employee and visitor credentials.
• Prepare and process visit authorization requests/letters (VARs/VALs).
• Perform Per Sec (Personnel Security) administrative functions, including but not limited to: DISS administrative functions—submit visit authorization, in‑process, indoctrinate, debrief, out‑process employees, submit CSRs, and generate reports.
• Communicate status updates to the FSO, program leaders, employees undergoing eligibility vetting, and respond to general service‑center inquiries.
• Keep the FSO apprised of and aligned with all program‑security concerns and tasks.
• Perform security briefings/debriefings.
• Process requests for special access.
• Submit electronic fingerprints through SWFT.
• Manage the document‑control database (SIMS) for incoming and outgoing classified material; ensure all classified material is properly accounted for, controlled, transmitted, transported, packaged, safeguarded, and destroyed in accordance with the NISPOM and contractual requirements.
• Other duties as assigned.

• High School Diploma or GED.
• Minimum of 6 years as a Per Sec (Personnel Security) administrator.
• Experience in a high‑paced corporate environment.
• Experience working in a security service center (a plus).
• Strong teamwork, partnership, and open communication skills.
• Execution of responsibilities with urgency, sound judgment, and the highest level of ethical and professional standards.
• Flexibility to adapt to changes in the work environment and maintain a professional demeanor.
• Demonstrated time‑management and organization skills to meet deadlines and quality objectives.
• Excellent organizational skills and ability to work well under stress despite frequent interruptions.
• Accuracy and attention to detail.
• Ability to work independently and resolve practical problems.
• Effectiveness and tactful communication with a wide variety of individuals via phone, in person, and in writing.
• Positive "can‑do" attitude and willingness to "jump in."
• Strong multitasking skills.
• Strong computer skills in Word processing, spreadsheets, and intermediate knowledge of MS Office Suite.

• Personnel Security, Government, or Industry experience.
• Proficiency in DISS, NISS, and ACCS.
• Knowledge and practical implementation of the National Industrial Security Program Operating Manual (32 CFR Part 117).
• Experience with SIMS, Trust Visitor, Cure, First Advantage, or similar Per Sec platforms.
• Strong oral, written, and presentation skills and the ability to relay technical information to others.
• Strong MS Excel, Word, and PowerPoint skills.

• Competitive salary.
• Medical, dental, vision, life, and disability insurance.
• Paid‑time off.
• Tuition reimbursement.
• 401(k) retirement plan.
• Military Reserve pay offset.
• Paid maternity leave.

• Exposure to computer screens for extended periods.
• Sitting for extended periods.
• Reach by extending hands or arms in any direction.
• Finger dexterity to manipulate objects with fingers rather than whole arms, e.g., using a keyboard.
• Listen to and understand information and ideas presented through spoken words.
• Communicate information and ideas in speech 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 speech of another person.