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M.C. Dean

Designs and deploys secure mission-critical infrastructure

Security Admin 1

Regulatory Compliance & EthicsConfirmed live in the last 24 hours
Full-timeTysons, VA, USANo salary listedIn-person

About the Job

Requirements

  • High School Diploma or GED.
  • Ability to obtain and maintain a Department of Defense Top Secret clearance with Sensitive Compartmented Information eligibility; an active clearance within the last 24 months is preferred, and Department of Defense reciprocal clearances are considered after verification.
  • At least 4 years of professional experience in a fast-paced corporate environment.
  • Support teamwork, partnership, and open communication.
  • Execute responsibilities with urgency, sound judgment, and high ethical and professional standards.
  • Adapt to changes in the work environment and maintain a professional demeanor.
  • Demonstrate time-management and organizational skills to meet deadlines and quality objectives.
  • Organize work effectively and perform under stress despite numerous interruptions.
  • Maintain accuracy and attention to detail.
  • Work independently and resolve practical problems.
  • Deal effectively and tactfully with a wide variety of individuals in person, by telephone, and in writing.
  • Have strong multitasking skills.
  • Have strong computer skills in word processing and spreadsheets, and intermediate knowledge of Microsoft Office Suite.

Responsibilities

  • Serve as an escort within restricted spaces.
  • Review and update the access control system.
  • Ensure employee and visitor credentials are issued and monitored.
  • Prepare and process visit authorization requests and letters.
  • Perform personnel security administrative functions, including initiating background investigations for positions of classified suitability, serving as Assistant Contract Program Security Officer, and supporting pre-employment and continuous-evaluation vetting.
  • Support citizenship verifications.
  • Provide Defense Information System for Security administrative support, including submitting visit authorizations; in-processing, indoctrinating, debriefing, and out-processing employees; submitting CSR requests; and generating reports.
  • Communicate status updates to the Facility Security Officer, program leaders, and employees undergoing suitability determinations.
  • Perform security briefings and debriefings.
  • Process requests for special accesses.
  • Submit electronic fingerprints through SWFT.
  • Manage the SIMS document-control database for incoming and outgoing classified material, ensuring all material is accounted for, controlled, transmitted, transported, packaged, safeguarded, and destroyed in accordance with the National Industrial Security Program Operating Manual and contractual requirements.

Desired Qualifications

  • Personnel security, government, or industry experience.
  • Working knowledge of DISS, NISS, and ACCS.
  • Understanding of the National Industrial Security Program Operating Manual.
  • Familiarity with SIMS, Trust Visitor, C•Cure, and First Advantage.
  • Strong oral, written, and presentation skills, including the ability to relay technical information to others.
  • Strong skills in Microsoft Excel, Word, and PowerPoint.
  • Experience working in a service center environment.
  • An active clearance within the last 24 months.

About the Company

M.C. Dean

Designs and deploys secure mission-critical infrastructure

M.C. Dean designs, builds, operates, and maintains integrated cyber-physical systems for mission-critical facilities, secure environments, and large enterprises. Its work spans electrical power, security, telecommunications, life safety, automation and controls, audio-visual, and IT systems, all coordinated through management platforms that support long-term operation and sustainability. The company works end-to-end: it engineers solutions, installs them, and then runs and maintains them to ensure continuous, secure, and resilient performance. What sets it apart is its ability to provide comprehensive, turnkey technology and infrastructure services for critical environments—combining physical systems with digital management to create secure, automated facilities. The goal is to deliver automated, secure, and resilient power and technology systems and the platforms needed to manage them over the long term.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Tysons, VA
Founded
1949

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