• Dentons US LLP (Washington, DC)
    Senior Enterprise Messaging Administrator Chicago, IL, USSt. Louis, MO, USKansas City, MO, USWashington DC, DC, USDenver, CO, USAtlanta, GA, USDallas, TX, US Dec 12, ... 2025 **Senior Enterprise Messaging Administrator ** Dentons US LLP is currently recruiting for a...the Azure platform and on-premises virtualization solutions such as VMWare Vcenter. + Fundamental understanding of the Microsoft 365… more
    DirectEmployers Association (12/13/25)
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  • AeroVironment (Arlington, VA)
    …**Job Description** **Job Summary:** The primary role of the Linux System Administrator is to support the full life-cycle management of 24x7 mission-focused ... Nessus and other toolsets + Familiarity with Virtualization Technologies such as VMware and Proxmox + Experience with containerization and Docker + Understanding of… more
    DirectEmployers Association (12/24/25)
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  • VMware Administrator

    SAIC (Washington, DC)
    **Description** **SAIC** is seeking a motivated and skilled ** VMware Administrator ** with strong experience in Windows Server administration, HP server hardware ... **5 days onsite.** Key Responsibilities: + Administer and maintain VMware vSphere environments, including ESXi hosts, vCenter, virtual machines, clusters,… more
    SAIC (12/13/25)
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  • Nuclear Regulatory Commission

    TekSynap (Rockville, MD)
    …Deployment SCCM Engineer Splunk SIEM Security Engineer Security Engineer Azure Cloud Engineer VMware /Azure Administrator Many of the roles will require a Public ... Trust background check. If you are contacted for an opportunity the employment manager will provide the job description and requirements. **Overview** We are seeking individuals who are interested in working on our Nuclear Regulatory Commission contract,… more
    TekSynap (01/06/26)
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  • Systems Engineer

    Koniag Government Services (Washington, DC)
    …as CMMI. + Relevant industry certifications (eg, Microsoft Certified: Azure Administrator , VMware Certified Professional, CompTIA Server+). + Experience with ... disaster recovery. + Support server technologies for both virtualized (eg, VMware , Hyper-V) and non-virtualized environments. + Configure, implement, and upgrade new… more
    Koniag Government Services (10/11/25)
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  • Mobility Engineer

    Koniag Government Services (Washington, DC)
    …Skills and Competencies:** + Certifications such as Microsoft Certified: Endpoint Administrator , VMware Certified Professional - Digital Workspace, or CompTIA ... Mobility+. + Experience with Zero Trust architecture, mobile threat defense, and security compliance frameworks. + Familiarity with Capability Maturity Model Integration (CMMI) or similar process improvement methodologies. + Demonstrated ability to lead… more
    Koniag Government Services (10/15/25)
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  • System Engineer Lead

    TekSynap (Washington, DC)
    …Bachelor's in Computer Engineering or Information Systems. + Certifications: + Microsoft Azure Administrator Associate or VMware VCP + ITIL v4 + Experience: 8-10 ... Windows Server and Linux VM infrastructure. + Administer virtualization platforms ( VMware , Hyper-V). + Implement patch management and configuration baselines. +… more
    TekSynap (12/03/25)
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  • Cyber operations Readiness Assessment Systems…

    TekSynap (Fort Belvoir, VA)
    …or equivalent). + Desired Certifications: Microsoft Certified: Windows Server Hybrid Administrator Associate, VMware VCP, Nutanix NCP. **Overview** We are ... GPOs, and domain controllers for STIG compliance. + Assess virtualization platforms ( VMWare ESXi, VDI, Nutanix) for secure deployment. + Validate patch management,… more
    TekSynap (12/24/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our team, bringing professionalism ... our best becomes better. GDIT has an immediate opening for a Systems Administrator to fill a Core Services position supporting the NNSA (National Nuclear Security… more
    General Dynamics Information Technology (01/05/26)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems Administrator , ... key role in the management, optimization, and troubleshooting of our VMware virtualized environment and Active Directory infrastructure, ensuring seamless and… more
    ManTech (12/19/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    Systems Administrator The Opportunity: In this role, you'll design, operate, and evolve the systems that power national-security missions. From enterprise Windows ... mission systems. + Administer and optimize virtualization platforms such as VMware vSphere, Broadcom, or Microsoft Hyper-V to sustain high-availability clusters. +… more
    BOOZ, ALLEN & HAMILTON, INC. (12/23/25)
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  • Sr. System Administrator

    Arena Technical Resources, LLC (Reston, VA)
    Sr. System Administrator Location: Reston, VA, US Job ID: ATR 17710 Job Description Job Title: Sr. System Administrator Location: Reston, VA - Onsite, SCIF ... with CI Polygraph Job Description: The job duties of the Sr. System Administrator are as follows: * Plans, designs, and implements infrastructure changes and system… more
    Arena Technical Resources, LLC (01/01/26)
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  • Systems Administrator - TS/SCI with Poly

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking an experienced **Systems Administrator ** to join our team in supporting mission-critical IT infrastructure. This role is ideal for ... with solid systems administration expertise, particularly in pipeline automation and/or VMware environments across Windows and/or Linux platforms. You will work in… more
    Leidos (01/01/26)
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  • System Administrator (Citrix)

    BAE Systems (Washington, DC)
    **Job Description** BAE Systems is seeking an experienced full-time on-site System Administrator to support our work as a prime contractor on a high-profile US Navy ... with the customer and IT infrastructure teams. As an on-site System Administrator , you will: + Capture, document, and structure stakeholder requirements, then design… more
    BAE Systems (12/04/25)
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  • IT Systems Administrator

    EMCOR Group (Dulles, VA)
    …agencies. **Job Summary** **Essential Duties and Responsibilities:** **IT Systems Administrator Requirements:** The System Administrator is responsible for ... + Responsible for capacity, storage planning, and database performance **Systems Administrator Qualifications:** + Relevant degree or diploma in Information systems… more
    EMCOR Group (12/31/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    VMware Certified Professional (VCP) + RedHat Certified System Administrator /Engineer (RHCSA/RHCE) + Microsoft Certified: Windows Server Administration/Engineer + ... and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, from daily… more
    BAE Systems (12/09/25)
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  • CNS Systems Administrator

    BAE Systems (Annapolis Junction, MD)
    …make a difference. We're seeking a highly skilled and motivated System Administrator to join our team, responsible for maintaining system administration support ... relevant experience. + Must have experience as a systems administrator providing direct support to end users and technical...have knowledge of Red Hat 7 and 8, and VMWare . + Must have experience with Apache Tomcat, IIS,… more
    BAE Systems (12/29/25)
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  • Systems Administrator 1

    DCCA (Annapolis Junction, MD)
    Systems Administrator 1 Location Annapolis Junction, MD Job Code 2149 # of Openings 1 Apply Now ... a competitive compensation and benefits package. Visit our website at: www.dcca.com Systems Administrator 1 Candidate must have an active TS/SCI w/ Poly For over 40… more
    DCCA (11/17/25)
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  • Cybersecurity System Administrator - DMV

    M. C. Dean (District Of Columbia, DC)
    Overview MC Dean is seeking a highly skilled **Cybersecurity System Administrator ** to support a secure operational technology environment by integrating advanced ... + Windows Server 2019/2022, Windows 10, RHEL 7/8 + VMware ESXi / vSAN infrastructure + Web browsers, Adobe...applications + Manage virtual machines and storage in a VMware vSAN environment. + Administer Microsoft SCCM, WSUS, Active… more
    M. C. Dean (11/26/25)
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  • Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …runner up in 2020 and a finalist in 2021! Belay Technologies seeks a Senior System Administrator (SA) to join our Intel team. You will play a key role in supporting ... and optimizing IT systems across Linux, Windows and VMware environments. You'll provide critical troubleshooting, enhancing system performance, and support… more
    Belay Technologies (11/19/25)
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