• System Administrator 2

    ARSIEM (Annapolis Junction, MD)
    …the ability to have an impact on every client you work with. ARSIEM seeks a System Administrator 2 . This position will support one of our government clients in ... Support implementation, troubleshooting and maintenance of Information Technology (IT) systems . + Manage IT system infrastructure and...network Clearance Requirement : This position requires an active TS /SCI with a polygraph. You must be a US… more
    ARSIEM (10/14/25)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a System Administrator for a technical development program supporting the Sponsor's Attribute Services within the IDAM/ICAM ... space.As a System Administrator on this program, you will...via an LDAP interface to hundreds of various Sponsor systems Required Qualifications + Active TS /SCI with… more
    Leidos (10/10/25)
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  • System Administrator 2

    Synergy ECP (Columbia, MD)
    System Administrator 2 Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Synergy ECP, a platform company with Falfurrias Capital ... with applicable system security controls. + Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the… more
    Synergy ECP (09/01/25)
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  • System Administrator

    CACI International (Laurel, MD)
    System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: ... + Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of… more
    CACI International (11/20/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    …Systems Administrator . Your job will be supporting as a Linux administrator to provide system maintenance, systems performance optimization along with ... perform technical software configuration, rebooting, and other remedial actions on customer systems . Work will be conducted on-site at our Chantilly, VA location.… more
    Leidos (11/15/25)
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  • Principal Contract Administrator

    BAE Systems (Sterling, VA)
    **Job Description** As the **Principal Contract Administrator ** you willperform research on complex contracting matters and provide sound business advice and counsel ... knowledge of all contract types + Active and Current secret clearance. Must be able to obtain and maintain...clearance. Must be able to obtain and maintain a TS /SCI **Preferred Education, Experience, & Skills** + CPCM or… more
    BAE Systems (10/15/25)
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  • Linux Systems Administrator

    Nightwing (Sterling, VA)
    …community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team to assist in ... Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS /SCI clearance...+ 3+ years of directly relevant experience in Linux System Administrator . + Proficiency in managing and… more
    Nightwing (11/18/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics ... make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital...and Windows environments. + Implement, troubleshoot, and maintain IT systems . + Manage daily IT system configuration… more
    Leidos (11/15/25)
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  • Security Administrator

    Amentum (Chantilly, VA)
    …discipline. + Senior-7+ years of personnel security experience. + Must have an Active Top Secret US Government Clearance at time of application with the ability ... should be comfortable learning to use new proprietary computers systems and spending the majority of the work day...polygraph. Note: US Citizenship is required to obtain a Top Secret Clearance. Preferred Qualifications: + Prior… more
    Amentum (11/20/25)
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  • Systems Administrator

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a highly motivated Systems Administrator to join our team of professionals providing technical and program services to the US ... land, at sea, in air, and in space. The Systems Administrator will be part of a...cloud assets: + Prepare and maintain security documentation, including system security plans (SSPs) + Prepare documentation and work… more
    SAIC (11/15/25)
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