• Tyto Athene (Reston, VA)
    **Description** Tyto Athene is searching for a **Junior System Administrator ** to work as part of an integrated team including cybersecurity specialists, ... ICAM concepts, and Virtual Machine deployments. **Responsibilities:** + Collaborate with network and system administrators on all projects, including current… more
    DirectEmployers Association (09/12/25)
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  • Network / System

    Global Resource Solutions (Washington, DC)
    …an enthusiastic, motivated, detail orientated, and talented individual for the position of Network / System Administrator III . Job Description: Summary: ... The Network / System Administrator III primary function is working within...file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required +… more
    Global Resource Solutions (09/01/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    …our future and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system ... such as: + VMware Certified Professional (VCP) + RedHat Certified System Administrator /Engineer (RHCSA/RHCE) + Microsoft Certified: Windows Server… more
    BAE Systems (10/08/25)
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  • Cloud Systems Administrator IV

    Criterion Systems (Reston, VA)
    …smooth operation of multi-user computer systems , including coordination with network engineers. + Monitors and manages system resources, including CPU ... systems . + Other duties may include setting up administrator accounts, maintaining system documentation, tuning ...technical experience required. + Current Security+ or other IAT II/ III level certification. + Full time on-site work at… more
    Criterion Systems (09/17/25)
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  • Cloud Systems Administrator V

    Criterion Systems (Reston, VA)
    …Linux operating systems . + Maintains smooth operation of multi-user computer systems , including coordination with network engineers. + Other duties may ... Overview At Criterion Systems , we developed a different kind of business-a...include setting up administrator accounts, maintaining system documentation, tuning … more
    Criterion Systems (08/08/25)
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  • System Administrator

    Chenega Corporation (Oakton, VA)
    System Administrator Oakton, VA . Information Technology Join our Talent Network Are you ready to enhance your skills and build your career in a rapidly ... IT Operations Support, Software Development, and Program Management. Job Title: System Administrator Location:Oakton, Virginia Clearance Level:Top Secret… more
    Chenega Corporation (08/13/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL) environments across ... local and wide area networks, monitor channels for storage-related network and system issues and remediate them...5+ years of directly relevant experience as a Linux System Administrator . - 3+ years of experience… more
    BCMC (10/16/25)
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  • Senior Systems Administrator

    Leidos (Gaithersburg, MD)
    …part of the Decision Advantage Solutions Business Area, is currently seeking a Senior Systems Administrator . As a senior member of our IT operations team, you ... to obtain SCI, as well as a Polygraph. **Primary Responsibilities:** + Lead system administration for Linux and Windows-based systems in secure, mission-critical… more
    Leidos (10/10/25)
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  • ESM Systems Engineer III (OCONUS)…

    V2X (Reston, VA)
    …their most complex challenges with integrity, respect, responsibility, and professionalism. The ESM Systems Engineer III is required to be certified at the ... expert level in multiple disciplines of systems and security (eg, MCSE & CISSP) and provides...resolution of escalated issues and complex production, application, or system problems. + Installs, configures, and maintains Microsoft Active… more
    V2X (10/22/25)
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  • SIPRNet Administrator

    CACI International (Reston, VA)
    …devices including routers, switches, firewalls, IDS/IPS, and C2C. + Complete STIG checklists for network and operating system hosts. + Patch network devices ... from ACA]. + Remediate CAT I/ CAT II/ CAT III findings associated with scans of network ...networks. + Active Secret clearance. + Strong understanding of network devices and operating systems . + Proficiency… more
    CACI International (08/08/25)
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  • Endpoint Security as a Service (ESS) Engineer/…

    Leidos (Washington, DC)
    …- 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 ... **Description** **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… more
    Leidos (10/03/25)
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  • Procurement Administrator Mid-Senior

    GovCIO (Washington, DC)
    …discernable direction while following established guidelines and polices. The Procurement Administrator III will be primarily responsible for sourcing suppliers, ... **Overview** GovCIO is currently hiring for a Mid-Senior level Procurement Administrator to support our Connected Care Integrated Network (CCIN) program within… more
    GovCIO (09/13/25)
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  • Nissc III Pursuit

    SAIC (Washington, DC)
    …+ Security Administrator + Specialty and Logistics Engineering + Software Engineer + Systems Administrator + Systems Architect + Systems Engineer + ... (NCMC) - INTEGRATED TACTICAL WARNING/ATTACK ASSESSMENT (NCMC-ITW/AA) AND SPACE SUPPORT CONTRACT III (NISSC III ).** **Please note that this is contingent upon… more
    SAIC (08/07/25)
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  • Lab Manager III

    ARSIEM (Arlington, VA)
    …clients in Arlington, VA. Responsibilities + Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL) environments across ... local and wide area networks, monitor channels for storage-related network and system issues and remediate them...5+ years of directly relevant experience as a Linux System Administrator . + 3+ years of experience… more
    ARSIEM (10/20/25)
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  • Lab Manager III

    ARSIEM (Arlington, VA)
    …Engagement Network (TEN) Lab Manager with experience as a Linux Systems Administrator to support the design, development, and deployment of advanced ... local and wide area networks, monitor channels for storage-related network and system issues and remediate them...5+ years of directly relevant experience as a Linux System Administrator . + 2+ years MacOS and… more
    ARSIEM (08/28/25)
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  • Cyberstar Department of the Interior Indian…

    Chenega Corporation (Washington, DC)
    …V (https://chenegamios.catsone.com/careers/81049-Chenega-MIOS-Portal/jobs/16594644-Application-Specialist-V/) Application Specialist VI System Administrator ... III (https://chenegamios.catsone.com/careers/81049-Chenega-MIOS-Portal/jobs/16594706- System - Administrator - III /) System Administrator IV System more
    Chenega Corporation (10/22/25)
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  • Senior Network Security Engineer

    CACI International (Columbia, MD)
    … security documentation. + Analyze and provide feedback on wired and wireless network systems . + Plan vendor comparisons, cost studies, and security assessments. ... + Evaluate existing network systems and recommend resource allocations. **_Education...least 3 of the following: Palo Alto Networks Certified Network Security Administrator (PCNSA), Sonicwall Network more
    CACI International (09/06/25)
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  • Senior Network Security Engineer

    CACI International (Columbia, MD)
    …+ Contribute to system security documentation. + Plan and evaluate network systems for resource recommendations. **What You'll Do:** + **Innovate and ... you'll leverage your engineering expertise to analyze and enhance complex systems , architecture, network design, and technical hardware issues.… more
    CACI International (09/13/25)
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  • Network Operations Center Technician…

    TEKsystems (Reston, VA)
    …partners operating in CONUS and OCONUS locations. The candidate will obtain and maintain System Administrator and\or Network Administrator II functions ... & Qualifications Additional Primary Responsibilities: Support Tier I- III system , networking, and engineering personnel to ensure network troubleshooting… more
    TEKsystems (10/14/25)
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  • Network Engineer

    KBR (Bethesda, MD)
    network configuration network and management experience. 6+ years as a network administrator technician. + Must be a US Citizen + A bachelor's degree ... network architecture specifications and artifacts + Design and plan network communications systems . + Provides specifications and detailed schematics for… more
    KBR (09/06/25)
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