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Security Admin 1 - Tysons, VA

M.C. Dean
tuition reimbursement, 401(k), retirement plan
United States, Virginia, Tysons
1765 Greensboro Station Place (Show on map)
Jan 15, 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.

Responsibilities

The Security Administrator will work with other members of the Corporate Security Team in ensuring compliance with DoD and Intelligence Community Security Directives.

This is a full-time position based out Tysons, VA. There is potential for the position to evolve and have some degree of workplace flexibility.

Daily Duties and responsibilities will be:

  • Escort uncleared individuals on site.
  • Review access control system and maintain employee/visitor badges and access control cards
  • Prepare visit authorization requests
  • Initiating, reviewing, and processing Personnel Security Clearances and Periodic Reinvestigations for the DoD and Intelligence Community
  • DISS administrative functions - submit visit authorization, in-process, indoctrinate, debrief, out-process employees, submit CSR's, and generating reports
  • Communicate status updates to Project Leaders and other individuals within organization
  • Perform security briefings/debriefings (SF 312, NATO, new employees and employee terminations etc.)
  • Submit electronic fingerprints through SWFT
  • Manage 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

Qualifications

  • High School Diploma with 4+ years of experience
  • Ability to obtain a TS/SCI with polygraph Security Clearance, Active preferred.
  • Minimum of 4 years of professional experience in a high paced working environment
  • Team player
  • Must work with a sense of urgency, integrity, and ethics
  • Must be flexible - 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 numerous interruptions
  • Accuracy and attention to detail
  • Ability to work independently and resolve practical problems
  • Ability to deal effectively and tactfully with a wide variety of individuals in person, via telephone and in writing
  • Must have a positive "can do" attitude and be willing to "jump in."
  • Must have strong multitasking skills
  • Must have strong computer skills in word processing, spreadsheets, and intermediate knowledge of MS Office Suite

Preferred Qualifications

  • College degree preferred
  • Security, Government or Industry Experience
  • Proficiency in DISS, other security databases
  • Understanding of the National Industrial Security Program Operating Manual
  • Familiarity with SIMS
  • Strong oral, written, and presentation skills and the ability to relay technical information to others
  • Strong MS Excel, Word and PowerPoint Skills

We offer an excellent benefits package including

  • A competitive salary
  • Medical, dental, vision, life, and disability insurance
  • Paid-time off
  • Tuition reimbursement
  • 401k Retirement Plan
  • Military Reserve pay offset
  • Paid maternity leave

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
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