For two decades, Millennium Corporation has been operating on the leading edge of cybersecurity. Our elite team of more than 400 experts has an unparalleled record of performance supporting Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering. With the largest contingent of contracted Red Team operators in the DoD, we provide an unmatched level of threat intelligence and battle-tested experience for customers in both the DoD and federal civilian markets.

Millennium is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law.

Millennium has an exciting opportunity for a Senior Facility Security Officer (FSO) in Hanscom, MA. The candidate must have an active secret clearance.

The Senior FSO will:

• Provide technical security advice and support for multiple collateral programs and, when required, SCI programs within the directorate.
• Maintain strong working relationships with Information Protection (IP) leads, program managers, contracting officers, to ensure standardized protection measures throughout the acquisition and sustainment lifecycle.
• Assist in developing Security Classification Guides, Program Protection Plans, Security Operating Procedures (SOPs), DD Form 254s, and other key acquisition/security documents.
• Assist with inspection-related tasks, including Management Internal Control Toolset (MICT) updates and other compliance reporting as required.
• Review program documentation for public release, ensuring proper markings, classifications, and distribution statements in accordance with DoD and Air Force guidance.
• Provide classification guidance and assistance for all collateral and SCI programs, ensuring compliance with applicable security protocols.
• Support the development and maintenance of Operations Security (OPSEC) plans, emergency action plans, transition plans, and transportation plans.
• Assist in classified document reproduction and distribution, ensuring proper handling in both physical and electronic formats.
• Oversee the destruction of classified materials and Controlled Unclassified Information (CUI) in accordance with security policies.
• Maintain and enforce facility access control measures, including visitor management, escorting, and issuance/tracking of access badges.
• Monitor security clearances through the Defense Information System for Security (DISS), ensuring personnel meet clearance requirements and security standards.
• Ensure personnel security clearances remain current, verify access levels, and process collateral access requests (e.g., NATO, Formerly Restricted Data). Alert IP leads of any missing SF-312/Non-Disclosure Agreements.
• Prepare, process, and review Visitor Access Requests (VARs) for accuracy and eligibility. Ensure timely and accurate visit certifications for personnel.
• Input foreign visit and foreign contact reports in DISS upon self-reporting.
• Assist with Electronic Questionnaires for Investigation Processing (e-QIP) and Standard Form 86 (SF-86) submissions for military and government civilian employees.
• Assume duties as Communications Security Responsible Officer (COMSEC RO) or Secure Voice Responsible Officer (SVRO) as required.
• Assist with security awareness and education programs, including creating/modifying presentations, brochures, and posters, as well as delivering in-person security briefings.

• Candidate must have an active secret clearance. 
• Bachelor's degree and 8+ YOE / 5 yrs w/in the DoD
• Strong understanding of counterintelligence threats and emerging security trends.
• Knowledge of DoD and Air Force security policies, directives, manuals, and instructions.
• Familiarity with the Defense Information System for Security (DISS).
• Basic understanding of DD Form 254 and its role in the Air Force acquisition process.
• Experience with classified document identification and proper safeguarding procedures.
• Ability to adapt to and support contingency schedules for emergency or critical mission support.
• Understanding of cloud-based classified systems and secure network connections (preferred).
• Ability to work in a dynamic environment and collaborate effectively with DoD personnel, military and civilian staff, and industry partners.
• Strong written and verbal communication skills, with the ability to convey complex information clearly and accurately.
• Demonstrated maturity and discretion when handling sensitive or classified information.
• Strong problem-solving skills and the ability to make sound security-related decisions.

• Must be comfortable with prolonged periods of sitting at a desk and working on a computer.
• Must be able to lift up to 10-15 pounds at a time.

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