• Junior Security Administrator

    CACI International (Chantilly, VA)
    Junior Security Administrator Job Category: Security Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of ... Local * * * CACI is looking for an Industrial Security Officer to join our team of passionate security professionals in our Chantilly, Va. You will be a key… more
    CACI International (10/03/25)
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  • Physical Security System…

    M. C. Dean (Chantilly, VA)
    …leaders in electrical, engineering, and cybersecurity industries. We are seeking a **Physical Security System Administrator 4** to join our ** Security and ... and commercial customers across high-growth markets. As a System Administrator for our Physical Security Systems, you...As a System Administrator for our Physical Security Systems, you will be responsible for monitoring, maintaining,… more
    M. C. Dean (10/23/25)
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  • Security Administrator

    Amentum (Chantilly, VA)
    …an opportunity in a new field? Are you considering a return to personnel security support or trusted workforce vetting? If you want to use your administrative ... an environment that allows you to directly support national security , we have an opportunity for you! Amentum is...we have an opportunity for you! Amentum is seeking security -minded individuals with attention to detail, strong communication and… more
    Amentum (10/25/25)
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  • Lead Security Systems Administrator

    Lumen (Herndon, VA)
    …in the program space as needed and be part of the overall company security team as well. Current TS/SCI clearance a must. Familiarity with DOD NISPOM Chapter ... implement new hardware, System Imaging, Create and implement group policies, Security script writing, Vulnerability assessment and mitigation. + Maintain systems in… more
    Lumen (10/29/25)
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  • System Administrator - Linux - TS/SCI FSP…

    The Metamorphosis Group (Chantilly, VA)
    …understanding of Ubuntu 14/16. 6. Certification as a RedHat Certified System Administrator (RHCSA). 7. Security certification(s), such as Cisco CCNA- Security ... System Administrator - LINUX - TS/SCI FSP REQUIRED Chantilly,...2 and Layer 3 technologies, such as VLANs, port security , 802.1Q, IP subnets, IP routing, VRF and BGP.… more
    The Metamorphosis Group (09/10/25)
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  • Sr. System Administrator (Linux)

    Nightwing (Sterling, VA)
    …position is hands-on and requires expertise in Linux administration, automation, and security hardening. The Senior System Administrator will ensure the ... providing technical services to enable customer mission accomplishment. The Senior System Administrator (Linux) will serve as a key member of the EINSTEIN… more
    Nightwing (10/29/25)
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  • Subcontracts Administrator

    KBR (Chantilly, VA)
    Title: Subcontracts Administrator KBR's National Security Solution (NSS) Procurement & Supply Chain function seeks a Subcontracts Administrator to support ... & Deltek Timekeeping system + Intermediate to advanced Excel skills Security Requirements + Candidates must possess a Top Secret/Sensitive Compartmented Information… more
    KBR (10/06/25)
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  • Senior System Administrator (Windows…

    Koniag Government Services (Chantilly, VA)
    …of progressive, hands-on experience in a System Administrator , Network Administrator , or similar senior-level role. ** Security Clearance:** + Must possess ... with Public Law 88-352_** **Job Details** **Job Family** **IT, Cyber Security , Network Systems** **Job Function** **Systems Administrator ** **Pay Type**… more
    Koniag Government Services (10/28/25)
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  • Windows System Administrator /Tech Support…

    Koniag Government Services (Chantilly, VA)
    …with Public Law 88-352_** **Job Details** **Job Family** **IT, Cyber Security , Network Systems** **Job Function** **Systems Administrator ** **Pay Type** ... a Koniag Government Services company **,** is seeking a Windows System Administrator /Technical Support Specialist with a **Secret clearance** to support KDS and our… more
    Koniag Government Services (10/04/25)
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  • Network Administrator Tier 2 (Network…

    Koniag Government Services (Chantilly, VA)
    …with Public Law 88-352_** **Job Details** **Job Family** **IT, Cyber Security , Network Systems** **Job Function** **Network Administrator ** **Pay Type** ... a Koniag Government Services company, is seeking a Network Administrator Tier 2 (Network Operations Center) to work an...and report authentication or hardware anomalies + Apply routine security patches under guidance from Tier 3 staff +… more
    Koniag Government Services (10/24/25)
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  • System Administrator

    CACI International (Chantilly, VA)
    …maintain Linux-based servers, automate system processes, and ensure the reliability and security of enterprise applications. The System Administrator will also ... System Administrator Job Category: Information Technology Time Type: Full...contribute to application migrations, documentation, and coordination with customer security teams. Join us to leverage your skills in… more
    CACI International (10/24/25)
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  • Cyber Threat Hunt Analyst​

    Leidos (Ashburn, VA)
    …ECSA - EC-Council Certified Security Analyst) + ENSA - EC-Council Network Security Administrator + ECIH - EC-Council Certified Incident Handler + ECSS - ... **Description** The US Department of Homeland Security (DHS), Customs and Border Protection (CBP) ... Security (DHS), Customs and Border Protection (CBP) Security Operations Center (SOC) is a US Government program… more
    Leidos (11/01/25)
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  • Security Control Assessor (SCA) (TS/SCI)

    Tau Six (Chantilly, VA)
    …with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or Information System Security ... cybersecurity and system integration services to the US National Security market. We are seeking a motivated self-starter with...in secure information systems to join a team of security professionals and help defend national security more
    Tau Six (10/22/25)
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  • SIPR BeyondTrust Administrator

    CACI International (Chantilly, VA)
    SIPR BeyondTrust Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... US * * * **The Opportunity:** CACI is looking for a BeyondTrust Administrator , to configure and support BeyondTrust's Remote Support, Privileged Remote Access, and… more
    CACI International (10/01/25)
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  • Cisco Call Manager Administrator

    CACI International (Chantilly, VA)
    Cisco Call Manager Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... * **The Opportunity:** CACI is looking for a Cisco Call Manager Administrator is responsible for the day-to-day administration, configuration, and maintenance of the… more
    CACI International (09/27/25)
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  • System Administrator 4

    PDS Defense (Herndon, VA)
    **IT/Technical** **System Administrator 4** Herndon, VA Posted: 10/30/2025 Job Description Job ID#: 214150 Job Category: IT/Technical Position Type: Associate - W2 ... 26 Shift: 1 Positions Available: 2 **PDS Defense, Inc. is seeking a System Administrator 4, in Herndon, VA. Job ID#214150** **Job Description:** The Senior System … more
    PDS Defense (10/31/25)
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  • Senior IAM Administrator

    Insight Global (Herndon, VA)
    …our large software client. The Senior Identity and Access Management (IAM) Administrator is responsible for leading secure, compliant identity solutions in alignment ... IAM platforms with enterprise systems. The position collaborates closely with security , compliance, and other applicable teams to ensure that access controls… more
    Insight Global (10/16/25)
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  • Systems Administrator (SME)

    BAE Systems (Herndon, VA)
    …and sustainment support for critical military platforms and systems. Intelligence & Security provides services and products to the Department of Defense, the ... and a shared ambition to lead the world in defense technologies and national security services. We offer flexible work environment to support the balance in your… more
    BAE Systems (09/12/25)
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  • System Operations/ Administrator

    Sciolex Corporation (Chantilly, VA)
    …you receive the utmost employee care. Responsibilities The System Operations/ Administrator will perform the following duties: Install, configure, and maintain ... hardware, software, and network-related issues. Monitor system performance and security , ensuring compliance with organizational policies and best practices. Manage… more
    Sciolex Corporation (10/14/25)
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  • Mission Support Administrator - Full…

    Patriot Group International, Inc (Chantilly, VA)
    Mission Support Administrator - Full Performance Position Type: Full-Time, Exempt Work Location: Chantilly, VA; McLean, VA Clearance: TS/SCI with polygraph Shift: ... offers an unrivaled hybrid of specialized services by combining security and risk management disciplines with a special operations...perspective. We are looking to hire a Mission Support Administrator - Full Performance to join our team in… more
    Patriot Group International, Inc (10/21/25)
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