• Infrastructure Engineer

    CACI International (Mclean, VA)
    Infrastructure Engineer / Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... **The Opportunity:** CACI is seeking a highly motivated Linux System Engineer and Administrator with hands on experience with the full lifecycle development and… more
    CACI International (09/26/25)
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  • Linux System Engineer

    CACI International (Laurel, MD)
    …for clusters. **Qualifications:** _Required:_ + 14+ years of experience as an Infrastructure Engineer and System Administrator in Linux environments. ... Linux System Engineer Job Category: Information Technology Time Type: Full...will be responsible for managing and optimizing our IT infrastructure , including servers, networks, and security systems. This role… more
    CACI International (12/05/25)
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  • Endpoint Security as a Service (ESS)…

    Leidos (Washington, DC)
    …**Leidos is seeking a skilled and driven Endpoint Security as a Service (ESS) Engineer and Administrator to join our team at the Washington Navy Yard ... - where innovation meets mission.** **What You'll Do** As an ESS Engineer and Administrator , you won't just maintain systems - you'll _elevate_ them. You'll be… more
    Leidos (10/03/25)
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  • M365 Administrator Engineer

    CACI International (Arlington, VA)
    M365 Administrator Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage ... **The Opportunity:** CACI is seeking an experienced Microsoft 365 Engineer to be part of a dynamic and high...Lead or participate in troubleshooting complex incidents with other infrastructure teams. * Assist in developing and maintaining standard… more
    CACI International (10/04/25)
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  • Security Engineer (Wiz and TVM…

    Leidos (Arlington, VA)
    **Description** Leidos has an immediate need for a Security Engineer for a customer on a highly visible and strategic Cybersecurity Task Order. The Security ... Engineer will need to be a self-starter with excellent...and Azure. + Coordinate remediation activities with DevOps and Infrastructure teams. + Develop Wiz dashboards and compliance posture… more
    Leidos (11/25/25)
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  • Cloud System Administrator

    ManTech (Hanover, MD)
    …contexts **Minimum Qualifications:** + Ten (10) years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of similar ... team in **Hanover, MD** . Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide...Directory and networking + Proven experience as a System Administrator or Cloud Engineer with practical knowledge… more
    ManTech (12/10/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    Administrator + ITIL 4 Foundation Certification + Microsoft Certified: Azure Administrator Associate + Red Hat Certified Engineer (RHCE) + VMware Certified ... Obtain:** None **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Linux,Microsoft Windows,System Administration **Experience:** 5… more
    General Dynamics Information Technology (09/16/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (College Park, MD)
    …Experience automating deployments and configuration management. + Experience as a network administrator or systems engineer . + Experience in using Active ... administration. Requirements + 3+ years of experience as a system administrator + Experience with installing or configuring devices, applications, and security… more
    ENS Solutions (09/27/25)
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  • Sr. Principal NetApp Storage Administrator

    Northrop Grumman (Linthicum Heights, MD)
    …& Digital Office (CIDO) organization is seeking a senior NetApp Storage Administrator with expertise in NetApp storage management to join its Classified Solutions ... but not be limited to the following: + Serve as a systems administrator with shared responsibility for the effective maintenance and operational activities of the… more
    Northrop Grumman (10/16/25)
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  • Principal Server Administrator

    BAE Systems (Washington, DC)
    …Experience, & Skills** + Certifications such as RHCE (Red Hat Certified Engineer ), MCSA/MCSE (Microsoft), or AWS Certified SysOps Administrator - Associate ... that enable our customers to achieve their missions. As a **Principal Server Administrator ** , you'll play a critical role in providing exceptional IT support to… more
    BAE Systems (10/30/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    …as: + VMware Certified Professional (VCP) + RedHat Certified System Administrator / Engineer (RHCSA/RHCE) + Microsoft Certified: Windows Server Administration/ ... and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, from daily… more
    BAE Systems (12/09/25)
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  • System Administrator

    BAE Systems (Washington, DC)
    …developing enterprise DevOps solutions through close collaboration with customers and IT infrastructure teams. As an on-site System Administrator , you will: + ... **Job Description** BAE Systems is seeking an experienced full-time on-site System Administrator to support our work as a prime contractor on a high-profile US Navy… more
    BAE Systems (12/13/25)
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  • Cybersecurity Incident Response…

    GovCIO (Washington, DC)
    …be a remote position. **Responsibilities** The Senior Cybersecurity Incident Response Administrator (Information Assurance Engineer - Senior) will be responsible ... **Overview** GovCIO is currently hiring for Cybersecurity Incident Respose Administrator to be responsible forSecurity Information and Event Management (SIEM)… more
    GovCIO (09/24/25)
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  • System Administrator

    BAE Systems (Washington, DC)
    **Job Description** BAE Systems is seeking an on-site System Administrator at Washington Navy Yard supporting our work as a prime contractor on a high-profile US ... successful candidate to possess and demonstrate. As a System Administrator you will work with a Team to install,...100,000 people in more than 40 countries. We develop, engineer , manufacture, and support products and systems to protect… more
    BAE Systems (11/15/25)
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  • Linux Systems Administrator

    CACI International (Fort Meade, MD)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... being assembled by CACI, Inc! We have an opening for a **Linux Systems Administrator ** with an active TS/SCI w/Polygraph clearance. If you thrive in a fast-paced and… more
    CACI International (10/29/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    Systems Administrator The Opportunity: In this role, you'll design, operate, and evolve the systems that power national-security missions. From enterprise Windows ... every configuration meets the mission's uptime demands. When the infrastructure is resilient, the mission never stops - and...be the reason why. What You'll Work On: + Engineer and maintain enterprise Windows Server and Linux environments… more
    BOOZ, ALLEN & HAMILTON, INC. (11/24/25)
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  • System Administrator (Citrix)

    BAE Systems (Washington, DC)
    …Citrix Virtual Apps and Desktops systems by interacting with the customer and IT infrastructure teams. As an on-site System Administrator , you will: + Capture, ... BAE Systems is seeking an experienced full-time on-site System Administrator to support our work as a prime contractor...100,000 people in more than 40 countries. We develop, engineer , manufacture, and support products and systems to protect… more
    BAE Systems (12/04/25)
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  • System Administrator

    BAE Systems (Washington, DC)
    **Job Description** BAE Systems is seeking an on-site **System Administrator ** to support our work as a prime contractor on a high-profile US Navy weapon ... forsupporting the customer s digital engineering environment as the primary System Administrator for a classified network. In this role you will support a… more
    BAE Systems (12/04/25)
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  • Cybersecurity Network Defense Administrator

    GovCIO (Washington, DC)
    …be a remote position. **Responsibilities** The Senior Cybersecurity Network Defense Administrator (Information Assurance Engineer - Senior) will be responsible ... guidelines and best practices. The role includes managing ACAS infrastructure , configuration, scanning, reporting, and analysis activities in accordance with… more
    GovCIO (09/25/25)
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  • Network Administrator

    Nightwing (Sterling, VA)
    …intelligence community, defense, civil, and commercial markets. Job Title: Network Administrator Location: Sterling, VA Clearance: TS/SCI Poly **This position is ... CONTINGENT upon contract award** The Network Administrator (NA) collaboratively works closely with the leadership, CPM/CPO, FE SRE and Product Team (Platform) to… more
    Nightwing (09/26/25)
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