• Systems Administrator - Linux

    GovCIO (Denver, CO)
    …/Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6104/ systems - administrator linux - windows ... our group. Work with other Admins to closely monitor multiple applications and systems to ensure files process completely and correctly. Assist in documentation of… more
    GovCIO (06/03/25)
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  • Principal Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Principal Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber ... with lasting impactful results. Join our team as a ** Linux Systems Administrator ** , where...Your role will involve configuring and managing UNIX and Windows operating systems , troubleshooting, maintaining network integrity,… more
    Leidos (05/30/25)
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  • Hybrid Systems Engineer, Sr…

    Lockheed Martin (Littleton, CO)
    …\. This includes the expert\-level installation, configuration, and maintenance of Windows and Linux environments, database deployments, and application tools\. ... not limited to: * Proficiently administer and proactively maintain complex hybrid Windows and Linux server environments across classified networks for optimal… more
    Lockheed Martin (05/02/25)
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  • Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Principal Linux Systems Administrator Aurora, CO, 100% on site. Must ... a Raytheon program in a classified environment as a **Principal** ** Linux System Administrator .** + Responsibilities include building, maintaining, and… more
    RTX Corporation (05/23/25)
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  • Senior / Principal Windows System…

    SciTec (Boulder, CO)
    …+ Provide Windows systems administration in multiple heterogeneous Microsoft Windows and Red Hat Enterprise Linux environments + Windows ... has an immediate opportunity for a talented Senior Principal Windows System Administrator to join our team...Implement and maintain security policies and procedures to protect Windows systems and data + Monitor system… more
    SciTec (04/06/25)
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  • Sr. Windows Administrator /Test Lab…

    Leidos (Aurora, CO)
    …similar enterprise vendors. + Must have experience in or familiarity with the following systems : Windows / Linux operating systems , VMware, VSphere and ... up front. No exceptions.* We are hiring a **Senior Windows Administrator / Test Lab Manager** to...support of a complex network environment with geographically distributed systems . The position entails supporting system engineering requests to… more
    Leidos (03/28/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …responsibilities will include, but not be limited to, the following:** + Perform as a Linux and Windows System Administrator on large government contracts. + ... our mission. Northrop Grumman is seeking a **Sr Principal Systems Administrator ** to join our team at...server administration experience with Linux (RedHat Enterprise Linux is preferred) and Windows + Perform… more
    Northrop Grumman (05/30/25)
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  • Sr Principal Cyber Architect/ Systems

    Northrop Grumman (Aurora, CO)
    …responsibilities will include, but not be limited to, the following:** + Perform as a Linux and Windows System Administrator on large government contracts. + ... mission. Northrop Grumman is seeking a **Sr Principal Cyber Architect/ Systems Administrator ** to join our team at...documentation + DoD 8570 Certification in a primary OS ( Windows , Linux , Cisco) Salary Range: $137,400.00 -… more
    Northrop Grumman (06/04/25)
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  • Associate Systems Administrator

    Northrop Grumman (Aurora, CO)
    …processing stations of satellite data. These systems have a mix of Operating Systems (AIX, LINUX , and Windows ) in both development lab environments and ... looking for you to join our team as a ** Systems Administrator ** based out of **Buckley AFB,...and 4 years of relevant experience. + CompTIA Security+ Linux Administration experience + Willingness to support 24/7 Ops… more
    Northrop Grumman (05/16/25)
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  • Senior Systems Administrator

    Leidos (Aurora, CO)
    …that has significant impact on project results/outputs. + Administer, maintain, and optimize Windows , Linux , and cloud-based systems to ensure high ... Leidos National Security Sector is seeking a skilled Senior Systems Administrator to join a new cyber...protocols and requirements. + Expertise in administering and securing Windows and Linux operating systems .… more
    Leidos (03/31/25)
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  • Systems Administrator

    CACI International (Denver, CO)
    Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular ... 8/26/2025 **The Opportunity:** Join CACI International Inc as a Systems Administrator and play a crucial role...years of relevant experience. + Must be proficient with Windows desktop operating systems , as well as… more
    CACI International (04/22/25)
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  • Principal Systems Administrator

    Leidos (Aurora, CO)
    …Division (MDS) within the Leidos National Security Sector is seeking a skilled Principal Systems Administrator to join a new cyber security program and play a ... key role in supporting government-critical systems . You will be part of a program that...+ Design, deploy, and maintain enterprise server environments, including Windows , Linux , and hybrid cloud infrastructures. +… more
    Leidos (03/29/25)
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  • Staff Database Administrator

    Northrop Grumman (Aurora, CO)
    …working with DevOps Processes + Systems administration experience, to include Windows , Linux , and VM environments Salary Range: $171,000.00 - $256,400.00 The ... employees are not only part of history, they're making history. Northrop Grumman Space Systems is seeking a **Staff Database Administrator ** for the **New Moon**… more
    Northrop Grumman (05/03/25)
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  • Computer Systems Analyst - Senior

    NuAxis Innovations (Denver, CO)
    …- Senior** for a Full-Time position. **Job Summary:** Specifically, the Computer Systems Analyst - Senior will: + Perform Windows 2008/2012 Administration ... **Computer Systems Analyst - Senior** Location **Denver, CO** \#...all system backups for multiple network servers including the Windows 2008/2012 servers, Linux and Windows more
    NuAxis Innovations (05/06/25)
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  • Technical Integration Engineer - TS/SCI with Poly

    Leidos (Aurora, CO)
    … (eg, AWS, Azure). + Administer large lab infrastructure systems running on the Linux and Windows operating Systems + Design, architect, and lead team in ... team. This hybrid role combines the expertise of a Systems Administrator , Software Engineer, and Information ...(ie Gitlab, Bitbucket) + High level of expertise with Linux systems (RedHat / CentOS or equivalent)… more
    Leidos (04/25/25)
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  • DevSecOps / Cloud Engineer

    DCCA (Broomfield, CO)
    …(ie, Jenkins, GitLab, Bamboo) and/or repositories (ie Nexus, JFROG) * Experience with Windows and Linux /Unix administration * Prior experience with DevOps and/or ... well as the end customer. * Maintains smooth operation of multi-user computer systems , including coordination with systems and network administrators. * Support… more
    DCCA (05/30/25)
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  • Senior SAP Basis Engineer

    Cardinal Health (Denver, CO)
    …products to assist in the management of SAP eco-system + Works with the Unix/ Linux / Windows Administrator on capacity planning and performance tuning of ... knowledge of software development frameworks and business process configuration systems . Examples include (not limited to) java application servers, integration… more
    Cardinal Health (05/21/25)
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