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Facility Security Officer (FSO)

Tullahoma, TN; Tullahoma; Tennessee; TN; Tullahoma, Tennessee; United States
Full Time On-site

Summary

Job Description

Amentum is seeking a Facility Security Officer (FSO) to support our Tullahoma, TN office.

Responsibilities

Manage security operations and compliance, overseeing all aspects of facility security to include physical and personnel security and classified material handling (where applicable).

Maintain Form DD254s and prepare/ administer sub-DD254’s.

Prepare visit requests and maintain accurate and timely data entry in security databases.

Implement security policies in alignment with Government regulations, contractual obligations and Defense Counterintelligence and Security Agency (DCSA) standards.

Coordinate security clearance processing and access control procedures to maintain operational integrity.

Maintain compliance with DOD security and related policies, procedures.

Ensure continuous compliance through regular self-inspections and conduct DCSA security assessments for all Facility Clearances (FCLs) managed out of this location.

Administer foreign travel briefings, track and record foreign travel notifications and debriefings, foreign contact and suspicious contact reports.

Engage with Government security officials to address evolving security requirements and mitigate risks associated with program execution.

Serve as the primary administrator for site security systems, including account management, vendor management, system health monitoring, audit logging, and coordinating service calls.

Badge new hires, visitors, and employees to ensure perimeter control compliance.

Supervise contracted guard force operations, including post orders, incident response, reporting requirements, and training.

Conduct regular site security reviews, documenting vulnerabilities and corrective actions.

Other duties as assigned.

Qualifications

• 3+ years of experience with master’s degree; 5+ years of relevant experience with bachelor’s degree

• 1-2 years of experience with access control and CCTV systems

• 1-2 years of experience with guard force management preferred

• Knowledge of Government databases such as NISS, DISS, NBIS, ACCS

• Experience with Microsoft Office Suite (PowerPoint, Word, and Excel)

• Completion of FSO Program Management Course preferred

• Strong, effective, and professional verbal and written communications skills

• Active Top Secret security clearance with the ability to maintain

About Amentum

Amentum

Amentum is one of the largest government services and engineering companies supporting the U.S. military, intelligence community, and federal agencies. Headquartered in Virginia with more than 50,000 employees worldwide, Amentum delivers mission-critical support across defense, cybersecurity, engineering, logistics, intelligence, aviation, nuclear, and space operations. The company plays a major role in helping government agencies solve complex national security and infrastructure challenges.

For job seekers, Amentum offers a wide variety of career opportunities across engineering, cybersecurity, intelligence, logistics, IT, aviation maintenance, program management, and cleared government support roles. The company is especially attractive to veterans, transitioning military personnel, and security-cleared professionals looking to continue supporting national security missions while building long-term career stability. Amentum also has a strong reputation for career mobility, education support, and mission-focused work across hundreds of federal programs.

Unlike many companies focused on a single niche, Amentum supports a broad range of high-impact missions—from military readiness and intelligence operations to NASA programs, cyber modernization, and critical infrastructure support. Employees often work on programs that directly support the Department of Defense, intelligence agencies, and federal civilian missions, creating opportunities to build diverse experience while contributing to meaningful national security outcomes.

As government investment continues to grow in cyber, space, engineering, and mission modernization, Amentum remains one of the strongest employers in the government contracting sector. For professionals seeking a stable, mission-driven career with opportunities for advancement, technical growth, and meaningful impact, Amentum continues to stand out as a top employer in defense and federal services.

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