• Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …complex computer system network administration activities. + Experience in Microsoft Windows computer operating systems, LINUX operating systems, CISCO Systems, ... as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the...a business, technical or engineering field. + Certification in LINUX operating systems + Cisco Certified Network Associate (CCNA).… more
    SimIS Inc. (08/07/25)
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  • Network Administrator 3 -Tyson's

    M. C. Dean (Vienna, VA)
    …technologies; digital/analog communications technologies. + Working knowledge of the following systems: UNIX/ LINUX , CISCO IOS, Windows Server , and Microsoft ... landscape. **Position Summary:** MC Dean is seeking a highly competent **Network Administrator 3** to assist on the design and maintenance of its network… more
    M. C. Dean (07/15/25)
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  • OCI Administrator

    System One (Ashburn, VA)
    …engineering and administration. * Ability to perform troubleshooting of the Windows Server or Red Hat Enterprise Linux operating systems. * BS or equivalent ... in Oracle * Working knowledge of Oracle Autonomous Databases Services * Advanced experience with Windows Server 2016 - 2022 or Red Hat Enterprise Linux 7-9… more
    System One (06/10/25)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    …in Information Technology. + IAT Level II certification. + Experience with Windows and Linux operating systems. + Experience providing help-desk end-user ... **MANTECH** seeks a motivated, career and customer-oriented **Senior** **IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include… more
    ManTech (07/22/25)
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  • Enterprise Senior Systems Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …scripting and deployment. + Prior experience building, deploying, and administrating Windows Server 2016-2022. + Experience with providing Active Directory ... Abilities:** + Experience with DISA STIGs and their relation to Windows , Linux , and VMWare Operating Systems security. + Intermediate experience with PowerShell… more
    General Dynamics Information Technology (08/08/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …multi-site operations with distributed teams across multiple geographic locations + Experience managing Windows and Linux server environments + Knowledge of ... network security, firewalls, and intrusion detection systems + Experience with virtualization technologies and cloud computing platforms + Demonstrated experience with DoD cybersecurity requirements and accreditation processes + Use experience gained to help… more
    SimIS Inc. (06/23/25)
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  • Senior Operating System Specialist - Thurs/Fri…

    GovCIO (Richmond, VA)
    …a trainer and/or mentor to other Linux Administrators at various times. ** Windows server administration -** + Able to perform complex functional activities ... of multiple server operating systems, including Unix, Linux , and Windows , which includes on-site and...Serve as the trainer and mentor to the other Windows Administrator position at various times. Work… more
    GovCIO (08/02/25)
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  • Information System Security Engineer (ISSE)

    Assertive Professionals (Chantilly, VA)
    Server 2012, Windows Server 2012 R2, Windows Server 2016. + Securing and monitoring Linux & Microsoft Windows desktops, servers, and ... including one or more of Windows 7, Windows 10, Windows Server 2008...VTC devices + Administering, securing and monitoring enterprise level Windows and Linux network infrastructures Desired Experience… more
    Assertive Professionals (07/10/25)
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  • Senior System Azure Cloud Engineer

    Insight Global (Herndon, VA)
    … and Application Services) environment. This role serves as a "hands-on" server administrator who evaluates complex system requirements and then designs, ... Experience working on Azure conditional access policies - Expert level Microsoft Azure Administrator /Engineer - Experience with Windows firewalls - Expert level … more
    Insight Global (08/02/25)
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  • Senior Monitoring & Observability Engineer - AWS…

    Fannie Mae (Reston, VA)
    …platform using Splunk/ Dynatrace/ Open Telemetry/ AWS Cloudwatch in a medium to large-scale Linux and Windows Server environments. * Knowledge of generating ... Observability platform using Splunk/ Dynatrace/ Open Telemetry/ AWS Cloudwatch in a large-scale Linux and Windows Server environments on-premises and AWS. *… more
    Fannie Mae (08/01/25)
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