• Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …in Microsoft Windows computer operating systems , LINUX operating systems , CISCO Systems , computer security program administration, and ... win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system...a business, technical or engineering field. + Certification in LINUX operating systems + Cisco Certified Network… more
    SimIS Inc. (11/06/25)
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  • System Administrator

    Parsons Corporation (Centreville, VA)
    …field. + CompTIA Security + Minimum + Proven experience as a System Administrator in a classified environment, preferably within the intelligence community ... You'll Be Doing:** + Manage and maintain Windows and Linux servers, ensuring optimal performance, security , and... administration tasks. + Work closely with the Information Systems Security Officer (ISSO) to address … more
    Parsons Corporation (09/04/25)
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  • Linux Sys Admin - TS/SCI CI Poly

    Insight Global (Springfield, VA)
    …Counter-Intelligence Polygraph (CI Poly) * Security + DoD 8570 certification or higher. * System administration across Linux systems . * Ability to work in ... Job Description Seeking a Systems Administrator to join a high-performing... security strategy. This is for an on-site system administrator sustaining and maintaining a VM-based… more
    Insight Global (11/15/25)
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  • IT Engineer - Microsoft Enterprise Systems

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Operations **Skills:** IT Help Desk, Linux ,Microsoft (MS) Active Directory (AD), System Administration,Windows 10 **Certifications:** CompTIA Security + - DoD ... **IT Engineer** with strong experience in both **Microsoft Enterprise Systems and Linux administration** to provide **Tier...**DNS** , **DHCP** , and **DFS** . + Perform ** Linux system administration** (RHEL, CentOS, Ubuntu), including… more
    General Dynamics Information Technology (10/14/25)
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  • SIGINT Systems Administrator (Low…

    CACI International (Hampton, VA)
    SIGINT Systems Administrator (Low Band Journeyman) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Employee Type: ... Travel: * * * CACI is seeking a SIGINT Systems Administrator to join the CACI team... administration for assigned infrastructure and establish and maintain system security . You will also apply … more
    CACI International (09/15/25)
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  • Cloud Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
    …or equivalent advanced security certification + Red Hat Certified System Administrator (RHCSA) + Kubernetes certifications (CKA, CKAD) Physical Demands: ... **Overview** CLOUD SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a...as Terraform, CloudFormation, or ARM templates + Monitor cloud system performance, availability, and security posture using… more
    UIC Government Services and the Bowhead Family of Companies (10/31/25)
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  • NCIS Cyber Systems Administrator

    General Dynamics Information Technology (Quantico, VA)
    …Required:** Yes **Job Description:** Transform technology into opportunity as a **Cyber Systems Administrator - SecOps** with GDIT. A career in enterprise ... meaningful part in improving how agencies operate. Our work depends on **Cyber Systems Administrator - SecOps** joining our IT Technology Operations division… more
    General Dynamics Information Technology (08/28/25)
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  • Cloud Systems Administrator

    Leidos (Alexandria, VA)
    …operational agility and resilience across the USCG enterprise. As a cloud systems administrator , you'll be responsible for managing and optimizing ... mission-critical systems across Red Hat Enterprise Linux (RHEL)...fast-paced, mission-driven environment + Certifications such as AWS SysOps Administrator , Azure Administrator , or CompTIA Security more
    Leidos (10/25/25)
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  • Systems Administrator

    SAIC (Chantilly, VA)
    …(RMF) activities to include security scanning, reporting and remediation. The Systems Administrator will also help manage a large inventory of VMware ... **Description** SAIC is seeking a highly motivated Systems Administrator to join our team...for on-premise and cloud assets: + Prepare and maintain security documentation, including system security more
    SAIC (11/15/25)
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  • System Administrator

    ManTech (Norfolk, VA)
    …related to system configurations and network connectivity for Range POR systems + Ensure compliance with security policies, procedures, and best practices, ... **MANTECH** seeks a motivated, career and customer-oriented ** Systems Administrator ** to join our team...Security + CE + Must obtain VMware, Windows, or Linux Operating System (OS) certification within 6… more
    ManTech (11/15/25)
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