• AeroVironment (Arlington, VA)
    …Manage client/server/storage/network infrastructure. + Configure and manage RedHat Linux and Windows systems . + Support vulnerability management using Nessus. + ... This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems . You'll work directly...as well as alignment with market data. **Clearance Level** Top Secret with Poly **ITAR Requirement:** _T_… more
    DirectEmployers Association (12/19/25)
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  • Tyto Athene (Santa Barbara, CA)
    **Description** Tyto Athene is searching for a ** Systems Administrator /Information System Security Officer** to join our CA team. **Responsibilities:** + Provide ... **Qualifications** **Required:** + 3 or more years of hands-on Systems Administration experience including Windows based computers,...+ Onsite support is required. **Clearance:** + Active DoD Top Secret or Top more
    DirectEmployers Association (12/06/25)
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  • Infinity Systems Engineering (Colorado Springs, CO)
    …WE ARE MORE - now, come be more with us! Job Summary: The Systems Administrator is responsible for the maintenance, configuration, and reliable operation of ... system performance and security, and providing technical support to internal users. The Systems Administrator will work closely with the IT team to ensure… more
    DirectEmployers Association (12/05/25)
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  • Argonne National Laboratory (Lemont, IL)
    …granted by the US Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to information classified up to that ... Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems ...software upgrades. + Experience with the administration of common Windows Server Domain Services such as Active Directory, DNS,… more
    DirectEmployers Association (11/22/25)
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  • Tyto Athene (Wright Patterson AFB, OH)
    …Security, CySA+, GSEC, GICSP, and the SSCP certification + Strong knowledge of Windows and/or Linux operating systems . + Experience with Active Directory ... Tyto Athene is searching for a detail-oriented and proactive mid level **System Administrator ** to join our team. The ideal candidate will have 3-5 years of… more
    DirectEmployers Association (01/03/26)
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  • Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...network engineering, administration, or related IT roles. + Clearance: TS /SCI, CI Poly + Required Skills: + Experience with… more
    DirectEmployers Association (11/25/25)
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  • Tyto Athene (Ashburn, VA)
    …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    DirectEmployers Association (11/01/25)
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  • Linux/ Windows Systems

    COMSO, Inc (Columbia, MD)
    Linux/ Windows Systems Administrator II ( TS /SCI...Alaska. We are honored to be recognized as a Top Workplace for seven years running by the Baltimore ... Sun Media Group. Currently, we are seeking aSystems Administrator IIto join our Team! ** Must have active...established Standard Operating Procedures (SOPs). + Build and configure Windows Server 2019 and 2022 systems from… more
    COMSO, Inc (11/27/25)
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  • Senior Windows Systems

    Adapt Forward (North Charleston, SC)
    Systems Administrator IV, Senior Windows Systems Administrator North Charleston, SC Secret Clearance with upgrade to Top Secret As a ... operating system issues + Competent and adaptable in all areas of Windows systems administration + Windows Server Configuration + Active Directory… more
    Adapt Forward (12/17/25)
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  • Windows Systems Administrator

    Athenix Solutions Group, LLC (Annapolis Junction, MD)
    Windows Systems Administrator Annapolis Junction, MD (http://maps.google.com/maps?q=Annapolis+Junction+MD+USA) *ACS Description Athenix Solutions Group is ... looking for multiple Windows Systems Administrators for a large program...improve reliability and performance Requirements **All openings require a TS /SCI with polygraph clearance to start.** Level 0 System… more
    Athenix Solutions Group, LLC (11/07/25)
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  • Windows Systems Administrator

    Northrop Grumman (Redondo Beach, CA)
    …some of the best work of your career. Northrop Grumman is seeking a well-qualified ** Windows Systems Administrator ** to join its dynamic team of technical ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...be limited to the following: + Perform as primary Windows Systems Administrator for a… more
    Northrop Grumman (01/07/26)
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  • Windows Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated ** Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in ... Qualifications** + High School Diploma and 7+ years of relevant experience with Windows systems + Experience with complex system architectures and interconnected… more
    ManTech (12/03/25)
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  • Senior Windows Systems

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Windows Systems Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD Position Overview: The Senior ... Windows Systems Administrator leads complex system administration and endpoint configuration activities within the environment. This role covers the… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Principal Windows Systems

    Northrop Grumman (Linthicum Heights, MD)
    …of your career. Northrop Grumman Mission Systems is seeking a well-qualified Windows Administrator to join its Classified Solutions team in Linthicum, MD. ... limited to the following: + Perform as a primary Windows /VMware systems administrator for a...Bachelor's or Master's degree in IS related field. + Top Secret Clearance. + Experience operating under… more
    Northrop Grumman (01/15/26)
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  • Senior Systems Administrator

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Windows Systems Administrator Range Network. The position will support ... Senior Systems Administrator , Windows Location...Senior Systems Administrator , Windows Location HI - Kaua'i...AND CLEARANCE: + Must be a US Citizen + Top Secret security clearance is required with… more
    Alaka'ina Foundation Family of Companies (12/15/25)
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  • Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** ** SYSTEMS ADMINISTRATOR ( WINDOWS ) (RDTE)**...be able to obtain a security clearance at the Top Secret level. US Citizenship is a ... Bowhead seeks a Systems Administrator ( Windows ) to provide customer support and technical assistance to...requirement for Top Secret clearance at this location. Applicants may be subject… more
    UIC Government Services and the Bowhead Family of Companies (12/23/25)
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  • Linux/ Windows Systems

    Lockheed Martin (King Of Prussia, PA)
    …topographies, Virtualization Technologies * Must currently have an active Top Secret Clearance **Desired Skills:** * Windows and Linux OS patching/security ... the boundaries of technology to help our customers achieve their missions\. The Work: As a Systems Administrator on the ECIW team, you will: \- Work in an agile… more
    Lockheed Martin (12/11/25)
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  • Windows Systems Administrator

    Deloitte (Lake Mary, FL)
    …advances. Qualifications Required: + Bachelor's degree and 8+ years of Windows systems administration experience + Active DoD Top Secret clearance ... growth through innovation. Work You'll Do Support and manage Windows operating systems and servers across the enterprise. Responsibilities include: + Installing,… more
    Deloitte (10/28/25)
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  • Windows Systems Administrator

    SAIC (Groton, CT)
    …CT** . The successful candidate will be the primary technical resource for Windows Systems Administration. This position requires the ability to assist with ... **Description** SAIC is hiring a ** Windows System Administrator ** to be located...+ Reviewing ACAS/Nessus vulnerability scans and remediating vulnerabilities on Windows systems . + Proficiency with system automation… more
    SAIC (01/07/26)
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  • Windows Server Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …to develop and maintain good working relationships with internal and external stakeholders This Windows Systems Administrator will be an active part of a ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the... Server Administrator to maintain and enhance Windows Systems and Infrastructure in support of… more
    Northrop Grumman (12/03/25)
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