• Linux Administrator

    CACI International (Chantilly, VA)
    …Operations team. The successful candidate will manage and support enterprise Linux systems that are mission-critical to national security operations. This role ... performance, availability, and capacity; implement proactive solutions. * Collaborate with network , security , and application teams to resolve system issues… more
    CACI International (09/03/25)
    - Related Jobs

  • OS Administrator Windows

    CACI International (Chantilly, VA)
    …Travel: Continental US * * * **The Opportunity:** CACI is looking for an Operating Systems (OS) Administrator Windows to support the Department of the Air Force ... OS Administrator Windows Job Category: Information Technology Time Type:...typical applications and their interactions with the underlying operating systems . + Maintain and manage Windows security … more
    CACI International (08/22/25)
    - Related Jobs

  • 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 (09/30/25)
    - Related Jobs

  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …managing Windows and Linux server environments + Knowledge of network security , firewalls, and intrusion detection systems + Experience with virtualization ... contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a US Navy Training Command. This… more
    SimIS Inc. (09/22/25)
    - Related Jobs

  • RHEL System Administrator III

    RTX Corporation (Chesapeake, VA)
    …do:** The Administrator is responsible for the local DoD Mission network servers and workstations in accordance with the authoritative USG requirements documents ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (09/30/25)
    - Related Jobs

  • Linux System Administrator

    Nightwing (Arlington, VA)
    …Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of advanced ... for acceptable performance and user accessibility, establish back-ups, and monitor systems security . - Troubleshoot and resolve complex storage problems across… more
    Nightwing (08/28/25)
    - Related Jobs

  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …The candidate will establish and implement solutions that are within Government security guidelines and maintain network infrastructure and processes that ensure ... + Experience in Microsoft Windows computer operating systems , LINUX operating systems , CISCO Systems , computer security program administration, and… more
    SimIS Inc. (08/07/25)
    - Related Jobs

  • Sr. SharePoint Administrator

    Leidos (Chantilly, VA)
    **Description** **Leidos** has a new and exciting opportunity for a **Sr. SharePoint Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... Business Area (CABA)** . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods… more
    Leidos (08/28/25)
    - Related Jobs

  • Principal/Sr Principal Contract…

    Northrop Grumman (Charlottesville, VA)
    …financing vehicles + Ability to obtain and maintain a DoD Secret security clearance **Qualifications for Senior Principal Contract Administrator (Band 4):** ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (08/30/25)
    - Related Jobs

  • SIPRNet Administrator

    CACI International (Reston, VA)
    …+ Previous ACAS scan administration experience. + Additional certifications or training in network security and administration. + Experience with network ... SIPRNet Administrator Job Category: Information Technology Time Type: Full...networks. + Active Secret clearance. + Strong understanding of network devices and operating systems . + Proficiency… more
    CACI International (08/08/25)
    - Related Jobs