• System Adminsitrator

    GCyber (St. Louis, MO)
    Administrator will manage, maintain, and optimize servers, operating systems , and enterprise applications to support continuous operations and mission-critical ... GCyber is hiring a System Administrator , to support our newly awarded United States...you will: + Manage, maintain, and optimize servers, operating systems (Windows/ Linux ), and enterprise applications in a… more
    GCyber (11/18/25)
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  • Information System Security Engineer - Senior

    Amentum (Warrenton, VA)
    …operational environments to include all cybersecurity tool sets and collaborating with systems and network engineers. * Use knowledge, skills, and ability to conduct ... for designing, integrating, and implementing security controls into current and future products/ systems thus ensuring these systems can be accredited based on… more
    Amentum (12/05/25)
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  • Information System Security Engineer

    CAE USA INC (Arlington, TX)
    …eligible for this role. Preferred Skills: Experience with System Administration of Windows and Linux Systems is highly desired. This is to include: + deployment ... Assist in Cost Account Management. + High level system administrator skills under Windows or Linux (prefer...one of DoD 8570.01-M Information Assurance Management (IAM) Level II Approved Baseline Certification (CAP, CASP+CE, CISM, CISSP (or… more
    CAE USA INC (12/17/25)
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  • Scheduler and Network Engineer

    SAIC (Aurora, CO)
    …is looking for a **Spacecraft Command and Control Scheduler and Network Engineer / Systems Administrator ** . Duties will include coordinating and managing end to ... configuring, maintaining, and troubleshooting networking equipment, servers and processing systems . End-to-end events will support testing, development, training, exercises,… more
    SAIC (12/11/25)
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  • Endpoint Security as a Service (ESS) Engineer

    Leidos (Washington, DC)
    …is seeking a skilled and driven **Endpoint Security as a Service (ESS) Engineer and Systems Administrator ** to join our team at the Washington Navy Yard - where ... mission. **What You'll Do** As an ESS Engineer and Systems Administrator , you won't just maintain ...in lieu of degree). + **DOD 8570 IAT Level II ** certification or higher. + Expertise in Windows Server… more
    Leidos (12/24/25)
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  • Service Desk Support Tech III

    University of Rochester (Brighton, NY)
    …cause of complex technical issues and resolving such issues. Acts as a System Administrator for various tools and systems . **ESSENTIAL FUNCTIONS** + Acts as an ... administration and email administration triage for Windows, Mac, LINUX , and UNIX server issues. Accountable for support documentation...performance of lower-level support. + Acts as a System Administrator for various tools and systems . +… more
    University of Rochester (12/23/25)
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  • System Engineer (TS/SCI)- Senior or Mid Level

    Vexterra Group (Bethesda, MD)
    Job Description: Vexterra is looking to fill a Windows Systems Engineer and Administrator position within the Analysis Solutions Division (ASD) to support the ... processes and results Certification + DoD 8570.11- IAT Level II or higher (eg Security+ CE, CCNA-Security, GSEC, or...and the cloud ecosystem. + Experience operating and maintaining systems in a Linux environment + Certification… more
    Vexterra Group (10/14/25)
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  • Windows Server Lead

    TekSynap (CT)
    …and installs, operates, maintains, configures, troubleshoots, and repairs IT systems devices, circuits, cables, components, software, and end-user devices, ... (Tier 5/SSBI) Critical Sensitive Clearance **Certifications** + DoD 8570 IAT Level II Baseline Certification + COMPTIA Security+ CE + Cisco Certified Network… more
    TekSynap (11/15/25)
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  • Splunk Engineer

    CACI International (Mclean, VA)
    …infrastructure for integration, cyber compliance, and network administration * Support both UNIX/ Linux and Windows-based systems * Collaborate with IT teams to ... alerts to ensure efficient monitoring and management of IT systems * Engage with Product Owners to align platform...IT Service Intelligence, Splunk Log Management * Knowledge of Linux security best practices * Knowledge of cybersecurity compliance… more
    CACI International (01/01/26)
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  • DevSecOps Engineer

    KBR (Chantilly, VA)
    …database, cloud and data center operations, and security protocols. + Strong knowledge of Linux and Windows OS + Familiar with AWS and other cloud services + ... of software tools + Experience packaging for Windows Server and Linux distributions including automating software template generation, configuring environments and… more
    KBR (12/09/25)
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