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CSSO​/Facility Security Officer; FSO

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Chenega Corporation
Full Time position
Listed on 2026-02-08
Job specializations:
  • Security
    Government Security, Information Security
Job Description & How to Apply Below
Position: CSSO/Facility Security Officer (FSO)
Location: St. Louis

Overview

CSSO/Facility Security Officer (FSO) – St. Louis, MO

Are you ready to enhance your skills and build your career in a rapidly evolving business climate? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you. Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take your career to the next level. Chenega MIOS supports the military, federal, and commercial entities at home and abroad.

Together, the companies aligned under the MIOS SBU offer a diverse and complementary range of capabilities that strengthen our capacity for shared knowledge and mission-focused service to our customers.

The CSSO/Facility Security Officer (FSO) will be responsible for security measures necessary for implementing the requirements of our Security Procedure Manual in accordance with National Industrial Security Program Operating Manual (NISPOM), Intelligence Community Directives (ICDs) and DoD Sensitive Compartmented Information Manual (DoDM 5105.21).

Responsibilities
  • Create, execute, and monitor office security policies, procedures, and practices in compliance with government security requirements and company security policies and procedures.
  • Prepare and enforce SOPs.
  • Assist with security program for other Chenega facilities.
  • Administer and monitor activities in e-QIP / eAPP, NISS, DISS, ACCS, and Access Commander.
  • Complete security program self-inspections.
  • Prepare for and serve as lead during SCIF audits/inspections.
  • Use DIS/S and other special access sites to track and maintain clearances.
  • Maintain SCIF visitor control functions.
  • Prepare visit authorization letters (VARs), when necessary.
  • Administer SCI Security Education, Training, and Awareness program.
  • Assist with the proper marking, safeguarding, and transmission of all classified and COMSEC materials.
  • Give guidance on maintaining all records in compliance with security manual and COMSEC procedures.
  • Program and issue access control badges; provide access control guidance.
  • Provide guidance and instructions to all employees to ensure any event, circumstance, or act that could be considered a breach of security is reported immediately.
  • Coordinate POC for facility alarm issues and requirements.
  • Respond to and investigate security infractions and violations.
  • Provide guidance on all SCIF operations including access control, classified visits, incident reporting, self-inspections, classified document control, records, clearance processing paperwork, TPA, etc.
  • Other duties as assigned.
Qualifications
  • High School Diploma or GED required.
  • 3+ years related experience that can be a combination of industrial security and the U.S. military.
  • Experience with SCIF operation, and Fixed Facility Checklist (FFC).
  • Experience with DISDS.
  • Active TS/SCI with ability to obtain CI Poly.
Knowledge,

Skills and Abilities
  • Well versed in the Intelligence Community Directives (ICDs) and DoD Sensitive Compartmented Information Manual (DoDM 5105.21) and Government security requirements.
  • Strong accuracy and attention to detail.
  • Excellent written and oral communication skills.
  • Ability to communicate clearly with all levels of management.
How you’ll grow

At Chenega MIOS, our professional development plan focuses on helping our team members at every level of their careers to identify and use their strengths to do their best work every day. From entry-level employees to senior leaders, there’s always room to learn.

We offer opportunities to help sharpen skills in addition to hands-on experience in the global, fast-changing business world. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their careers.

Benefits

At Chenega MIOS, we know that great people make a great organization. We value our team members and offer them a broad range of benefits.

Learn more about what working at Chenega MIOS can mean for you.

Chenega MIOS’s culture

Our positive and supportive culture encourages our team members to do their best work every day. We celebrate individuals by recognizing their uniqueness and offering them the flexibility to make…

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