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Assistant Facility Security Officer (AFSO)

Core One · Sterling, VA · Active · Greenhouse

Job facts

FieldValue
CompanyCore One
TitleAssistant Facility Security Officer (AFSO)
Normalized title-
Department / teamCorporate
LocationSterling, VA, United States
Work model-
Employment type-
Salary-
Statusactive
ATS providerGreenhouse
Posted / first seen2026-06-15 / 2026-06-16
Changed / last seen2026-06-17 / 2026-06-19

Related slices

PageWhat it containsOpen
Company jobsActive postings from Core One.Open
Company breakdownsRole, location, ATS, and work model facets for this company.Open
ATS provider jobsActive postings observed through Greenhouse.Open
Provider filtered searchThe same provider as a filtered job collection.Open
City jobsActive postings in Sterling.Open
Department jobsActive postings in Corporate.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanyCore One
Sourcee1339707-90d6-45ea-bc83-bb048405990c
ATS providerGreenhouse

Description

Join our team at Core One! Our mission is to be at the forefront of devising analytical, operational and technical solutions to our Nation's most complex national security challenges. In order to achieve our mission, Core One values people first! We are committed to recruiting, nurturing, and retaining top talent! We offer a competitive total compensation package that sets us apart from our competition. Core One is a team-oriented, dynamic, and growing company that values exceptional performance! *This position requires Top Secret (TS) Clearance* Job Summary: The Assistant Facility Security Officer (AFSO) supports the Senior Facility Security Officer in administering personnel and facility security functions for a cleared defense contractor. Responsibilities include processing security clearances, maintaining security records, coordinating access and visit requests, conducting security briefings, and assisting with compliance requirements. The position requires an active Top Secret clearance, strong attention to detail, and the ability to handle sensitive information with discretion. Responsibilities: Assist the Facility Security Officer (FSO) in administering the company's industrial security program in accordance with NISPOM requirements. Process and maintain personnel security clearance records, including onboarding, updates, transfers, and periodic reinvestigations. Utilize DISS, NBIS, and other government security systems to manage personnel security actions. Coordinate and process visit requests, incoming visitor notifications, and access authorizations. Conduct employee security briefings, debriefings, and annual security awareness training. Maintain accurate security files, records, and documentation in accordance with DCSA requirements. Assist with classified material accountability, inventory, storage, transmission, and destruction activities. Support the administration of facility access controls, badges, visitor logs, and secure areas. Track and maintain security training records and compliance requirements. Assist with preparation for DCSA assessments, self-inspections, and internal security reviews. Review and maintain DD254 security requirements and related contract security documentation. Coordinate with Human Resources, Contracts, IT, and Program Management regarding security-related matters. Assist in documenting and reporting security incidents, violations, and suspicious activities. Provide administrative support for the overall security program and perform other security duties as assigned. Qualifications: Active Top Secret security clearance required. 1–3 years of industrial security, personnel security, or related experience, preferably as an Assistant FSO. Facility Security Officer (FSO) Certification. Familiarity with DISS, NBIS, NISPOM, and DD254 requirements preferred. Strong organizational, communication, and administrative skills. Proficiency with Microsoft Office applications. Security Clearance: Top Secret (TS) Core One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, or protected veteran status and will not be discriminated against on the basis of disability. __PRESENT __PRESENT __PRESENT __PRESENT __PRESENT __PRESENT __PRESENT

Full job record

Job ID84df05a17c7c41f3b3cc678fd892fe12289c4b76
Org IDa5d09ed9-38ce-4330-9284-fe4f7888f374
Source IDe1339707-90d6-45ea-bc83-bb048405990c
Board IDe1339707-90d6-45ea-bc83-bb048405990c
Providergreenhouse
Provider Job Key8593055002
TitleAssistant Facility Security Officer (AFSO)
Normalized Title
Statusactive
Activeyes
Location TextSterling, VA
DepartmentCorporate
Team
Employment Type
Workplace Type
Remote Policy
CountryUnited States
RegionVA
CitySterling
Salary Raw
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://job-boards.greenhouse.io/coreone/jobs/8593055002
Apply URLhttps://job-boards.greenhouse.io/coreone/jobs/8593055002
First Seen At2026-06-16 07:39:24Z
Last Seen At2026-06-19 07:39:15Z
Last Checked At2026-06-19 07:39:15Z
Last Changed At2026-06-17 07:38:48Z
Inactive At
Source Posted At2026-06-15 19:48:33Z
Source Updated At2026-06-16 15:06:42Z
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=greenhouse/board=coreone/date=2026-06-19/2026-06-19T07-39-15-405Z-aae833b498048dd957a219756e2f7e40e14cd5824df061e48d46a1da624696c6.json
Event Fields
{
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  "source_hash": "84ac7c9c9fee232eea86363e8f1e2a981dd31d8b6e6404472d1a5659d27dd4f2",
  "last_changed_at": "2026-06-17T07:38:48.670Z",
  "active_status": "active"
}
Parsed Structured
{
  "language": "en",
  "location": {
    "raw": "Sterling, VA",
    "city": "Sterling",
    "region": "VA",
    "country": "United States",
    "is_remote": false,
    "confidence": 0.9
  },
  "salary_max": null,
  "salary_min": null,
  "inferred_at": "2026-06-19T07:39:15.612Z",
  "launch_scope": {
    "reason": "english_us_canada",
    "included": true,
    "language": "en",
    "location": {
      "raw": "Sterling, VA",
      "city": "Sterling",
      "region": "VA",
      "country": "United States",
      "is_remote": false,
      "confidence": 0.9
    },
    "countries": [
      "United States"
    ]
  },
  "remote_policy": null,
  "salary_period": null,
  "workplace_type": null,
  "salary_currency": null
}
Extensions
{}
Native Structured
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      "name": "Sterling, VA",
      "location": null,
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  "language": "en",
  "location": {
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  },
  "metadata": [
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      "id": 102716165002,
      "name": "Category",
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      "value_type": "short_text"
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  "updated_at": "2026-06-16T11:06:42-04:00",
  "departments": [
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      "name": "Corporate",
      "child_ids": [],
      "parent_id": null
    }
  ],
  "company_name": "Core One",
  "requisition_id": 6432185002,
  "first_published": "2026-06-15T15:48:33-04:00",
  "application_deadline": null
}
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