• Linux Systems Administrator II

    Epsilon, Inc (Lakewood, CO)
    ** Linux Systems Administrator II** **Epsilon is now part of AMERICAN SYSTEMS!** We are pleased to announce Epsilon, Inc. has joined AMERICAN SYSTEMS. Together, ... Solution Architecture, and Project Management. **An average day:** As Linux Systems Administrator II, you will support the reliability, security, and performance… more
    Epsilon, Inc (10/09/25)
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  • Principal Linux Systems…

    Northrop Grumman (Aurora, CO)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic team of technical ... but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively at all… more
    Northrop Grumman (09/23/25)
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  • Senior Linux System Administrator

    GovCIO (Denver, CO)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position ... USD $135,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6348/senior- linux -system- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6348_ **Category** _IT… more
    GovCIO (08/08/25)
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  • Senior Linux Systems Administrator

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... a difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the implementation,… more
    Leidos (09/18/25)
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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 & ... program with lasting impactful results. Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the implementation,… more
    Leidos (08/11/25)
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  • Sr Principal Linux Systems…

    Northrop Grumman (Boulder, CO)
    …include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively ... Office (CIDO) organization is seeking a highly experienced **Senior Linux Server Admin** to join its dynamic team of...be a condition of continued employment + Must have Linux Operating Systems support experience + Linux more
    Northrop Grumman (10/09/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    MANTECH seeks a motivated and customer-focused ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and perform… more
    ManTech (08/08/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    ManTech is seeking a ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT Modernization effort and ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and perform… more
    ManTech (08/08/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, maintaining, and securing ... GICSP, GSEC, SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using and developing automation tools/frameworks… more
    RTX Corporation (07/19/25)
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  • Linux Administrator

    TEKsystems (Denver, CO)
    Contract-to-Hire | Data Center & Infrastructure Expansion Are you a Linux aficionado ready to take ownership of a growing infrastructure in a high-impact role? Join ... next five years-and then double again. This is your chance to be the go-to Linux expert in a collaborative, forward-thinking IT environment. What You'll Do: + Lead … more
    TEKsystems (10/02/25)
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  • Linux System Administrator /ONSITE

    TEKsystems (Boulder, CO)
    …LDAP, Email, Google Workspace, Identity Management, RADIUS) and drive Linux -based environments. Provide systems administration in Enterprise Infrastructure and ... specification, design, implementation, testing, administration, maintenance and documentation of Linux -based compute hosts, file servers, storage subsystems and related… more
    TEKsystems (10/09/25)
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  • Lead Linux Systems Administrator

    Insight Global (Aurora, CO)
    Job Description Overview: Insight Global is seeking a Lead Systems Administrator to lead operations at Buckley Space Force Base, CO. This role involves system ... in support of mission-critical ground systems. The environment is Linux -based, with a mix of bare metal and virtual...system processes and guiding team operations Sustain and troubleshoot Linux and virtual systems, (HW, SW, and OS) Perform… more
    Insight Global (10/06/25)
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  • Linux System Administrators Careers

    Northrop Grumman (Aurora, CO)
    …It is for you to speak with a Talent Advisor here at Northrop Grumman.** ** Linux Systems Administrator ** : + Manage and maintain secure operation of Linux ... workstations, and applications for several program or project areas. **Principal Linux Systems Administrator ** + Serve as primary Linux Systems … more
    Northrop Grumman (09/14/25)
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  • Cleared IT Systems Administrator Senior

    BAE Systems (Broomfield, CO)
    …REQUIRED** BAE Systems Space and Mission Systems is seeking an experienced Linux System Administrator that will support the implementation, troubleshooting and ... Education, Experience, & Skills** + Red Hat Certified System Administrator (RHCSA). + Linux Foundation Certified System Administrator (LFCS). + Experience… more
    BAE Systems (09/09/25)
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  • Telecommunications Network System…

    Tri-State Generation and Transmission Association, Inc. (Westminster, CO)
    …+ CompTIA Network+ Nokia NRS I / II + Red Hat Certified System Administrator (RHCSA) + Linux Professional Institute Certification (LPIC-1 or LPIC-2) **Note** : ... one of four job grade levels: Telecommunications Network System Administrator I, job grade T3; Telecommunications Network System ...routing and switching. + Experience with Red Hat Enterprise Linux , Perl, SQL/MySQL 8. + Familiarity with SNMP, TL1,… more
    Tri-State Generation and Transmission Association, Inc. (09/25/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …will include, but not be limited to, the following:** + Perform as a Linux and Windows System Administrator on large government contracts. + Perform ... mission. Northrop Grumman is seeking a **Sr Principal Systems Administrator ** to join our team at our facility in...of application** + Must have server administration experience with Linux (RedHat Enterprise Linux is preferred) and… more
    Northrop Grumman (09/11/25)
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  • Systems Administrator II

    DCCA (Aurora, CO)
    …a competitive compensation and benefits package. Visit our website at: www.dcca.com System Administrator II ( Linux ) Candidate must have an active TS/SCI w/ Poly ... Systems Administrator II Location Aurora, CO Job Code 2055...in the resolution process. Configures and manages UNIX and Linux operating systems and installs/loads operating system software, troubleshoots,… more
    DCCA (08/22/25)
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  • Systems Engineer L3

    NTT America, Inc. (Denver, CO)
    …related experience. **REQUIRED EXPERIENCE** + Minimum 5-7 years of experience as a Linux or Windows Systems Administrator /Engineer in an Enterprise Data Center ... **KEY** **RESPONSIBILITIES** + Evaluate, implement, and manage advanced Windows and Linux server solutions, including virtualized and cloud environments (eg, VMware,… more
    NTT America, Inc. (09/27/25)
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  • Engineer, Software & Information Platform

    Cardinal Health (Denver, CO)
    …determines causes and takes timely corrective action. + Works with the Unix/ Linux /Windows Administrator on capacity planning and performance tuning of servers ... OSS Experience with TMS (Transport Mgmt System) modules Knowledge of Linux /DB2 database administration preferred. + Knowledge of good system management principles… more
    Cardinal Health (09/18/25)
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  • System Administrator

    DCCA (Denver, CO)
    System Administrator Location Denver, CO Job Code 2454 # of Openings 1 Apply Now ... competitive compensation and benefits package. Visit our website at: www.dcca.com System Administrator Candidates MUST have an active TS/SCI Clearance For over 40… more
    DCCA (09/22/25)
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