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Facility Security Officer (FSO)

Mission OneMcLean, Virginia

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Overview

Schedule
Full-time
Career level
Senior-level
Remote
Option for remote
Benefits
Career Development

Job Description

Position OverviewThe FSO will be responsible for developing, implementing, and managing all aspects of Mission One’s industrial security program in compliance with the National Industrial Security Program (NISP) and applicable government regulations. This is a hands-on leadership role with direct visibility to executive leadership and a strategic mandate to shape and scale our security infrastructure as we grow.
The ideal candidate is a self-starter, able to wear multiple hats, and comfortable working in a lean small business environment where their expertise will directly impact contract execution and growth opportunities.
Key Responsibilities
  • Serve as the company’s primary interface with the Defense Counterintelligence and Security Agency (DCSA) and other security stakeholders.
  • Manage and maintain compliance with the NISPOM, DoD security directives, and customer security requirements.
  • Oversee and manage JPAS/DISS, NISS, and eQIP activities including clearance processing, visit authorizations, incident reporting, and personnel security actions.
  • Administer personnel security clearances (PCLs), maintain required records, and ensure all personnel meet eligibility and suitability requirements.
  • Develop and implement security policies, standard operating procedures, and training programs for cleared employees.
  • Conduct self-inspections, security audits, and annual reviews to ensure continuous compliance.
  • Manage classified material handling, storage, and transmission, ensuring adherence to marking and safeguarding protocols.
  • Coordinate with leadership on security considerations for proposals, contracts, and program execution.
  • Serve as Insider Threat Program Senior Official (ITPSO) and ensure adherence to insider threat reporting and training requirements.
  • Provide security briefings, debriefings, and training for cleared personnel.
Required Qualifications
  • Active Secret or TS/SCI clearance.
  • 3+ years of experience as an FSO or Assistant FSO supporting DoD or Intelligence Community programs.
  • Strong understanding of NISPOM, DoD 5220.22-M, and DCSA compliance requirements.
  • Proficiency in DISS, NISS, eQIP, and associated personnel security systems.
  • Proven ability to work independently and operate within a small business environment.
  • Excellent communication, organizational, and leadership skills.
  • U.S. Citizenship is required.
Preferred Qualifications
  • Completion of FSO Program Management for Possessing Facilities (CDSE).
  • Experience establishing or scaling an FSO program in a small business or start-up environment.
  • Experience managing Insider Threat Program responsibilities.
  • Familiarity with contract security clauses, DD254s, and classified contracts administration.
  • Bachelor’s degree or equivalent relevant experience.
Why Mission One
  • Strategic leadership opportunity to shape the company’s security infrastructure from the ground up.
  • High visibility with executive leadership and direct impact on contract readiness.
  • Mission-driven organization supporting national security priorities.
  • Flexible work environment and performance-driven culture.
  • Competitive compensation and growth opportunities as the company expands its cleared footprint.

Flexible work from home options available.

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FAQs About Facility Security Officer (FSO) Jobs at Mission One

What is the work location for this position at Mission One?
This job at Mission One is located in McLean, Virginia, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.
What pay range can candidates expect for this role at Mission One?
Employer has not shared pay details for this role.
What employment applies to this position at Mission One?
Mission One lists this role as a Full-time position.
What experience level is required for this role at Mission One?
Mission One is looking for a candidate with "Senior-level" experience level.
Does Mission One allow remote work for this role?
Yes, this position at Mission One supports remote work, giving candidates the flexibility to work outside the primary office location.
What benefits are offered by Mission One for this role?
Mission One offers Career Development for this position. Actual benefits may vary depending on the employer's policies and employment terms.
What is the process to apply for this position at Mission One?
You can apply for this role at Mission One either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.