Facility Security Officer (TS/SCI with Full Scope Polygraph Required)

Sitreps•Arlington, VA

21h•Onsite

About The Position

We are an early-stage defense AI company building the vendor-neutral operating system for agentic AI in high-consequence environments. We have secured multiple prime contracts across the U.S. Government, with deployments into classified spaces. We are seeking a Facility Security Officer (FSO) to establish and lead our industrial security program. This role is crucial for managing DCSA interfaces, scaling the security program during rapid growth, and overseeing the design and accreditation of our first Sensitive Compartmented Information Facility (SCIF). This position requires an active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with a Full Scope Polygraph.

Requirements

Active TS/SCI clearance with Full Scope Polygraph
U.S. citizenship
Minimum of 5 years of experience as an FSO or Assistant FSO supporting Department of Defense (DoD) and/or Intelligence Community programs
FSO Program Management for Possessing Facilities certification (CDSE) or the ability to obtain within 90 days of hire
Working knowledge of NISPOM, Intelligence Community Directives (ICDs) including ICD 705, and DCSA compliance requirements
Proficiency with DISS, NISS, eQIP, and associated personnel security systems
Must be based in the National Capital Region

Nice To Haves

Experience establishing an industrial security program within a startup or small business environment
Prior experience with SCIF design, construction, and ICD 705 accreditation
Background as a CPSO supporting SCI or SAP programs
Experience navigating multiple customer security regimes (IC, DoD, civilian) concurrently
Familiarity with classified IT security, cross-domain solutions, or COMSEC custodianship

Responsibilities

Serve as the primary interface with the Defense Counterintelligence and Security Agency (DCSA) and customer security stakeholders, ensuring NISPOM compliance, conducting self-inspections, managing audits, and maintaining relationships to facilitate program progression.
Administer the full personnel security lifecycle, including DISS, NISS, eQIP, clearance processing, crossovers, visit requests, indoctrinations, and debriefings, scaling these processes as headcount increases.
Manage classified contract security, including DD254 review, development of contract-specific security plans, and adherence to operational requirements derived from program classification guides.
Establish and manage the Insider Threat Program and the Security Education, Training, and Awareness (SETA) program, designed to adapt to the company's projected growth.
Lead the design, construction, and ICD 705 accreditation of the company's first SCIF, managing the process from initial concept through to sustained operations.
Develop scalable procedures that support current headcount and future growth, integrating compliance as a core operational feature rather than a hindrance.

Benefits

Comprehensive medical, dental, and vision plans with 100% premium coverage by the company for employees
Exceptionally low premiums for spouses and dependents
Basic life insurance and disability coverage 100% covered by the company for employees
Option to purchase additional life insurance
Paid time off (not accrual-based)
Generous company holiday calendar, including a holiday shutdown in December
Supportive leave of absence program for military service, medical events, and parental leave
Full 401(k) retirement plan for eligible full-time employees
Company-funded commuter benefits
Free access to on-site gym