Senior Security Specialist – Facility Security / NISPOM

Exton, PA

Apply Apply with LinkedIn
Save

Type: Contract-to-Hire

Experience: 0

Category: Information Technology

Contractor Work Model: Hybrid

Brand: System One

Compensation Range: 150000.00 - 175000.00 Per Hour

Job ID: 352234

Date Posted: 06/16/2026

Shortcut: http://jobs.systemone.com/Cie2xN


Job Title: Senior Security Specialist – Facility Security / NISPOM
Job Type: Contract to Hire
Location: Exton, PA
Experience Level: Senior (15+ years)
Clearance Required: Top Secret required, TS/SCI preferred


Position Summary
We are seeking a highly experienced Security Specialist with deep expertise in facility security operations under the National Industrial Security Program Operating Manual (NISPOM). The ideal candidate will provide strategic guidance, operational excellence, and thought leadership across all aspects of classified facility security. Experience supporting or operating within a proxy-controlled organization is strongly preferred.

Key Responsibilities

  • Serve as the senior subject matter expert for all NISPOM-related facility security requirements, ensuring full compliance with DoD and Intelligence Community directives.
  • Oversee the implementation, maintenance, and continuous improvement of the Facility Security Program, including physical, personnel, and information security domains.
  • Lead classified facility accreditation processes, including SCIF/SAPF construction, modifications, inspections, and lifecycle management.
  • Develop and refine security policies, standard operating procedures, and training programs for employees, leadership, and subcontractors.
  • Direct security incident investigations, reporting, corrective actions, and risk mitigation strategies.
  • Maintain liaison and collaborative relationships with Defense Counterintelligence and Security Agency (DCSA), government customers, auditors, and senior executives.
  • Provide thought leadership by advising on emerging security regulations, threat trends, and best practices affecting the enterprise.
  • Support insider threat mitigation programs, access control processes, and visitor control functions.
  • Oversee security audits, self-inspections, and readiness assessments, ensuring a high state of compliance and operational security.
  • Guide and mentor junior security staff, fostering a culture of compliance, accountability, and professional growth.

Required Qualifications
  • 15+ years of progressive experience in Industrial Security, Facility Security, or related national security domains.
  • Expert-level knowledge of NISPOM, DoDM 5205.07, ICD 705, and associated facility security regulations.
  • Demonstrated success managing secure facilities, classified programs, and accreditation processes.
  • Proven ability to lead complex security initiatives, influence cross-functional teams, and brief senior leadership.
  • Experience in a proxy-controlled organization or Special Security Agreement (SSA) environment is a strong plus.
  • Strong analytical, investigative, and communication skills.
  • Active DoD security clearance required; TS/SCI preferred.

Preferred Attributes
  • Recognized thought leadership through white papers, panels, working groups, or cross-industry collaboration.
  • Experience developing enterprise-level security strategies and risk-based frameworks.
  • Certifications such as SFPC, SAPPC, SPIPC, ISOC, CPP, or ISP preferred.


System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

#M-2
#LI-CB5

Ref: #851-Rockville-S1

  • Network Engineer (TS/SCI)

    Springfield, Virginia

    Network Engineer Springfield, VA - onsite Security Clearance: TS/SCI Responsibilities: Provide advice and training to end-users and less-experienced network personnel Identify, analyze, and resolve network incidents and problems Provide network/equipme...

    Date Posted: 05/13/2026 Recommended

  • Sr. Engineer - TS Clearance

    Bedford, Massachusetts

    Job Title: Sr. Engineer Location: Hanscom AFB Type: Contract To Hire Compensation: Negotiable Contractor Work Model: Onsite – Hours: 40.0 Security Clearance: TS/SCI Responsibilities Apply engineering theories, principles, concepts, standards, and metho...

    Date Posted: 05/05/2026 Recommended

  • Systems Engineer - TS Clearance

    Bedford, Massachusetts

    Job Title: Systems Engineer Location: Hanscom AFB Type: Contract To Hire Compensation: Negotiable Work Model: Onsite Hours: 40.0 Security Clearance: TS/SCI Responsibilities Apply broad theoretical and practical knowledge of system engineering to the ac...

    Date Posted: 05/05/2026 Recommended

  • Software Engineer with TS-SCI with Poly

    Fort Meade , Maryland

    Job Title: Software Engineer Location: Fort Meade, Maryland Type: Direct Hire Compensation: 125-178K Contractor Work Model: On-site Hours: 40.0 Security Clearance: TS/SCI with full scope Poly Responsibilities Analyze user requirements to derive softwar...

    Date Posted: 06/11/2026 Recommended

  • CRA II

    Exton, PA

    Job Title: CRA II Location: Must be Mid-West based in the United States Type: Direct Hire, full time permanent direct with the client Salary Range: $82,000 - $107,000 commemorate with level of experience Model: Hybrid – onsite and remote Hours: 40.0 Lo...

    Date Posted: 06/05/2026 Recommended

  • Senior Telecom Software Engineer (TS/SCI clearance)

    Herndon, Virginia

    Senior Telecom Software Engineer TS/SCI clearance Herndon, VA Responsibilities: • Conduct telecommunications network analysis, diagnostics, and performance remediation with expertise in protocols such as SS7, SIP, VoIP, TCP/IP, and Diameter across 2G, ...

    Date Posted: 05/21/2026 Recommended

  • Senior Network Engineer (CCIE) – Security

    Alexandria, VA

    Job Title: Senior Network Engineer / Security SME Location: Bolling AFB, Washington, DC Type: Direct Hire Contractor Work Model: Onsite Security Clearance: Active Top Secret or TS/SCI required Required Certifications: Current CCIE and DoD 8570 baseline...

    Date Posted: 06/09/2026 Recommended

  • Controlled Access Program Security Manager

    Hampton, Virginia

    Job Title: Controlled Access Program Security Manager Location: Hampton, Virginia (on-site) Compensation: $80,000 - $92,000 Security Clearance: TS/SCI, CAP/SAP clearable Responsibilities Review, track, and monitor CAP/SAP security clearance processing ...

    Date Posted: 04/24/2026 Recommended

  • Senior Network Engineer (CCIE) – Wireless SME

    Alexandria, VA

    Job Title: Senior Network Engineer (CCIE) – Wireless SME Location: Bolling AFB, Washington, DC Type: Direct Hire Contractor Work Model: Onsite Security Clearance: Active TS/SCI or Top Secret required This role supports a high-visibility, mission-critic...

    Date Posted: 06/09/2026 Recommended

  • Cyber Security Engineer III

    St. Louis, Missouri

    Job Title: Cyber Security Engineer Location: St. Louis, MO Work Model: Onsite Position Type: 6 Month Contract to Hire Clearance Requirement: Active TS/SCI required and ability to obtain poly Job Summary We are seeking a Cyber Security Engineer to suppo...

    Date Posted: 06/04/2026 Recommended

  • Sr. Business Analyst

    St. Louis, Missouri

    Job Title: Sr. Business Analyst Location: St. Louis, Missouri Type: Contract To Hire Contractor Work Model: Onsite Security Clearance: TS/SCI with ability to obtain polygraph within 90 days Responsibilities Provide senior program and project management...

    Date Posted: 06/16/2026 Recommended

  • PostgreSQL DBA

    Alexandria, VA

    Job Title: Senior PostgreSQL Database Administrator Type: Direct Hire Contractor Work Model: Onsite Security Clearance: Top Secret w/ SCI eligibility Location: Bolling AFB, Washington, DC Clearance: Active Top Secret required, current or previously hel...

    Date Posted: 05/12/2026 Recommended

  • Network Engineer

    Reston , Virginia

    Job Title: Network Engineer Location: Reston, VA Role Type: Contract Clearance Required: CI Poly Roles and Responsibilities: Work full-time at the customer site in Reston, VA. Communicate with the customer(s), sales teams, peers, engineering and suppor...

    Date Posted: 05/18/2026 Recommended

  • Senior VMware & Data Center Engineer

    alexandria, VA

    Job Title: Senior VMware & Data Center Engineer Location: Washington, DC Type: Direct Hire Contractor Work Model: Onsite Hours: 40.0 hours per week Security Clearance: TS/SCI Overview Leave placeholder text here for recruiter to input Responsibilities ...

    Date Posted: 06/16/2026 Recommended

  • Sr. Cloud Security Specialist (AWS)

    Washington, DC

    Senior Cloud Security Specialist 100% ONSITE in Washington DC Per Federal contract U.S. Citizenship Required Must be able to pass enhanced FBI background screening (criminal, financial and finger printing) for Public Trust clearance Performance Period:...

    Date Posted: 04/28/2026 Recommended

  • Cyber Security Engineer III

    Springfield, VA

    Job Title: Cyber Security Engineer Location: Springfield, VA Work Model: On site Position Type: 6 month contract to hire Clearance Requirement: Active TS/SCI with ability to obtain a polygraph System One IT is seeking a Cyber Security Engineer to suppo...

    Date Posted: 06/04/2026 Recommended

  • Senior Network Engineer CCNP

    Alexandria, VA

    Job Title: Senior Network Engineer CCNP Location: Bolling AFB, DC Type: Contract Compensation: $180,000.00 Contractor Work Model: Onsite Hours: 40.0 Security Clearance: TS/SCI Responsibilities Translate stakeholder and Government requirements into netw...

    Date Posted: 05/11/2026 Recommended

  • DevSecOps Engineer & MBSE Modeler

    Rockville, Virginia

    DevSecOps Engineer & MBSE Compensation: $140,000 - 150,000 Security Clearance: Secret clearance required to start Must be able to obtain Top Secret Location: Rockville, MD with occasional travel locally (Aberdeen Proving Ground, Pentagon, CARDEROCK) We...

    Date Posted: 05/27/2026 Recommended

  • Software Developer

    Washington, District Of Columbia

    Title: Software Developer Location: Washington, DC Clearance: Active Secret clearance/Top-Secret preferred Type: Direct Hire Contact: Crystaldinnocenti@systemone.com Successful Software Developer's demonstrate competency in integrating advanced technol...

    Date Posted: 03/25/2026 Recommended

  • Cloud Security Engineer

    Salisbury, MD

    Job Title: Cloud Security Engineer Location: Salisbury, MD Type: Direct Hire Compensation: $126000 - $190000 annually Contractor Work Model: Onsite Position Summary We are seeking a skilled and detail-oriented Cloud Security Engineer to join our growin...

    Date Posted: 05/13/2026 Recommended

  • Coordinator - International

    New York, New York

    Job Title: Coordinator - International Location: New York, NY Type: Contract Overview Provide administrative support to the SVP of License & International Strategy, their direct team, and total International team as needed, inclusive of the coordinatio...

    Date Posted: 05/13/2026 Recommended

  • REMOTE Cybersecurity Engineer ( W2 direct hire, US citizen or GC only, no C2C )

    Washington, District Of Columbia

    *** This is a direct hire role - W2 salary with full benefits - no contractors *** ONLY US CITIZENS -or- US PERMANENT RESIDENTS ( GREEN CARD ) - NO C2C candidates, NO 3rd parties - NO visa sponsorship, NO green card sponsorship - NO F1 visa students, N...

    Date Posted: 06/16/2026 Recommended

  • REMOTE Cybersecurity Engineer ( W2 direct hire, US citizen or GC only, no C2C )

    Atlanta, Georgia

    *** This is a direct hire role - W2 salary with full benefits - no contractors *** ONLY US CITIZENS -or- US PERMANENT RESIDENTS ( GREEN CARD ) - NO C2C candidates, NO 3rd parties - NO visa sponsorship, NO green card sponsorship - NO F1 visa students, N...

    Date Posted: 06/16/2026 Recommended

  • Telecommunications Design Engineer

    Alexandria, VA

    Job Title: Telecommunications Design Engineer Type: Direct Hire Compensation: $190,000 - $225,000 Work Model: Onsite Telecommunications Design Engineer (Senior) Location: Bolling AFB, Washington, DC Clearance: Active TS/SCI or Top Secret (Required) Req...

    Date Posted: 03/24/2026 Recommended

  • Deskside Support Technician (Tier II)

    Washington, DC

    Job Title: Deskside Support Technician (Tier II) Location: Washington, DC Type: Contract Contractor Work Model: Onsite – onsite Pay: $39/h Security Clearance: Public Trust Overview This role is supporting a fast-paced government environment in Washingt...

    Date Posted: 06/11/2026 Recommended

  • Cybersecurity Engineer ( W2 direct hire, US citizen or Green cards only, no C2C )

    Pittsburgh, Pennsylvania

    *** This is a direct hire role - W2 salary with full benefits - with our company itself - NOT for our client *** ONLY US CITIZENS -or- US PERMANENT RESIDENTS ( GREEN CARD ) - NO C2C candidates, NO 3rd parties - NO visa sponsorship, NO green card sponso...

    Date Posted: 06/08/2026 Recommended

  • PKI Governance and Configuration Manager

    Springfield, VA

    Job Title: PKI Governance and Configuration Manager Location: Springfield, VA Required Security Clearance: Top Secret Responsibilities Oversee the integrity, security, and compliance of Department of State’s PKI and Credential hosting systems. Manage t...

    Date Posted: 06/16/2026 Recommended

  • AI RPA Solutions Architect

    Hampton , Virginia

    Title: AI/RPA Solutions Architect Location: Langley, AFB – On-site full-time Clearance: Active TS/SCI Contact: Crystal.dinnocenti@systemone.com POSITION OVERVIEW We are seeking a highly skilled AI/ML Engineer with Robotic Process Automation (RPA) exper...

    Date Posted: 04/01/2026 Recommended

  • Cybersecurity Engineer ( W2 direct hire, US citizen or Green cards only, no C2C )

    Pittsburgh, Pennsylvania

    *** This is a direct hire role - W2 salary with full benefits - with our company itself - NOT for our client *** ONLY US CITIZENS -or- US PERMANENT RESIDENTS ( GREEN CARD ) - NO C2C candidates, NO 3rd parties - NO visa sponsorship, NO green card sponso...

    Date Posted: 06/16/2026 Recommended

  • Category Manager

    Houston, TX

    Category Manager Houston, TX 77042 System One is seeking a Category Manager in Houston, TX to establish and execute third party category management strategies to achieve best value in support of enterprise needs. This role partners closely with busines...

    Date Posted: 04/24/2026 Recommended