• Senior / Principal Windows System

    SciTec (Boulder, CO)
    …SciTec has an immediate opportunity for a talented Senior / Principal Windows System Administrator to join our team in Boulder, CO. Successful applicants ... 5+ years professional experience performing duties of a Windows system administrator + Strong knowledge of Microsoft...field, or equivalent experience + An active and transferable Secret clearance with ability to gain a TS more
    SciTec (11/19/25)
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  • Systems Administrator 1

    DCCA (Annapolis Junction, MD)
    …competitive compensation and benefits package. Visit our website at: www.dcca.com Systems Administrator 1 Candidate must have an active TS /SCI w/ Poly For ... Systems Administrator 1 Location Annapolis Junction,...to excellence. Key Tasks: s Along with meeting the System Administrator I LCAT requirements, the ideal… more
    DCCA (11/17/25)
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  • Systems Administrator

    ManTech (Fort Meade, MD)
    **MANTECH** seeks an experienced and passionate, career and customer-oriented ** System Administrator ** to join our team in **Ft. Meade, MD.** **Responsibilities ... support of maintenance, developing and testing of information technology systems + Administration of Linux (ie, Redhat/Rocky...updates, IAVAs, and configuration changes) + Able to perform system administration on Linux Redhat 8/Rocky 8… more
    ManTech (12/31/25)
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  • ServiceNow Systems Administrator

    SAIC (Annapolis Junction, MD)
    …process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... + Minimum of 9 years of experience as a Systems Administrator in programs and contracts of...ServiceNow with other applications is required Desired: + ServiceNow System Administrator certification + DoD 8570 compliance… more
    SAIC (11/06/25)
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  • Systems Administrator w/Poly

    BigBear.ai (Hanover, MD)
    Overview BigBear.ai is seeking a System Administrator to support mission critical application and systems in support of multiple Identity, Credential and ... Access Management (ICAM) projects. The selected candidate will serve in a System Administrator role to keep the system operational, compliant and perform… more
    BigBear.ai (12/17/25)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    …and storage environments; Linux , UNIX and Windows operating systems ; installs/loads operating system software, troubleshoots, maintains integrity; and ... **Description** **Leidos** has a new and exciting opportunity for a ** Systems /Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics… more
    Leidos (12/20/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking an experienced ** Systems Administrator ** to join our team in supporting mission-critical IT infrastructure. This role is ideal ... Poly security clearance. + CompTIA Security+ certification + Proven experience in systems administration for Windows and/or Linux environments. + Hands-on… more
    Leidos (01/13/26)
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  • Mid/Senior System Administrator

    Belay Technologies (Annapolis Junction, MD)
    …2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a System Administrator (SA) to join our intel team. The SA provides support for ... The SA configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots,...VCenter/VMWare + AWS Experience + VPC, EC2, S3 + Linux and Windows operating systems + CentOS,… more
    Belay Technologies (11/19/25)
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  • Expert Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a System Administrator for a 200+ FTE technical development program supporting the Sponsor's Entitlement Programs as well as ... /ICAM, Authentication, Authorization, Attributes and Digital Policy Management. The System Administrator will work with a large...of degree. + Must be an Expert in using Linux -based operating systems with strong experience working… more
    Leidos (01/15/26)
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  • Systems Administrator

    Northrop Grumman (Aurora, CO)
    …making history. Northrop Grumman Space Systems (NGSP) seeks to fill a ** System Administrator ** supporting Integrated National Systems (INS) Business Unit ... + Experience with NetApp storage + Perform as consulting Systems Administrator and subject matter expert for...requirements for solutions to problems by means of automated systems . + Recommend and implement system enhancements… more
    Northrop Grumman (11/27/25)
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