• Principal Platform Engineer / Linux

    RTX Corporation (Aurora, CO)
    …safer, more secure world. Raytheon Technologies (RTX) is seeking a **Principal Platform Engineer / Linux ** with well-rounded Linux Infrastructure Engineering ... Technical Exchange Meetings (TEMs) as required. The **Principal Platform Engineer / Linux ** would be involved with...of the Department of Defense, handles and adjudicates the security clearance process. More information about … more
    RTX Corporation (09/09/25)
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  • Senior Azure/ Linux Engineer (Fed/…

    Deloitte (Denver, CO)
    …learners focused on technology and innovation. Work you will do: The Cloud Engineer is responsible for implementation, management, cloud security and automation ... with Senior Leadership and multiple departments delivering on major national Firm Information Technologies initiatives. Cloud Engineer will support a variety of… more
    Deloitte (09/13/25)
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  • Linux Systems Administrator - TS/SCI…

    Deloitte (Colorado Springs, CO)
    …requires candidates to be on-site in Colorado Springs, CO. + 3+ years of cyber security experience with emphasis on Linux Systems Administration. + 3+ years of ... with client on design, architecture and implementation of cyber solutions. + Engineer , implement, configure and tune IT infrastructure in support of cyber solutions.… more
    Deloitte (09/19/25)
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  • Lead Information Security

    Lumen (Denver, CO)
    …the world and shape the future. **The Role** Lumen Technologies is seeking a Lead Information Security Engineer who can help design, engineer , build, ... patching, hardening, user access permissions, and routine maintenance of Security infrastructure systems ( Linux & Windows) +...+ Develop and support tools and programs for other Information Security teams + Develop / modify… more
    Lumen (09/30/25)
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  • (USA) Principal, Systems and Infrastructure…

    Walmart (Denver, CO)
    information systems, cybersecurity or related area and 3 years' experience leading information security or cybersecurity projects, We value candidates with a ... charge in transforming our infrastructure? As a Principal, Systems and Infrastructure Engineer at Walmart/VIZIO, you will play a pivotal role in designing, building,… more
    Walmart (09/25/25)
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  • Systems Security Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …about creating and managing for highly complex systems? Join our team! As a Systems Security Engineer II, you will be using your skills and expertise to design, ... and CNSSI 1253 + Employ best practices when implementing security requirements for information systems including Model...standards, and procedures + Ability to read and interpret security and technical documentation + Strong Windows, Linux more
    Sierra Nevada Company, LLC (09/10/25)
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  • Product/App Security Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …take ownership for our actions-always doing the right thing. We are seeking a Product Security Engineer to join a highly motivated team that will play a critical ... This posting will close within 90 days from the Posting Date. Keyword: Product Security Engineer , STIG, system hardening, python, bash, CISSP, CEH, (ZTA), Risk… more
    Kratos Defense & Security Solutions, Inc. (09/19/25)
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  • Senior Information Security

    Lumen (Denver, CO)
    …and shape the future. **The Role** We are seeking a highly skilled and motivated Sr. Information Security Engineer to join our Physical Security team. ... is responsible for the implementation, administration, and maintenance of physical security systems and infrastructure across a global enterprise. You will serve… more
    Lumen (10/01/25)
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  • Senior Information Security

    Lumen (Denver, CO)
    …the world and shape the future. **The Role** Lumen Technologies is seeking a Senior Information Security Engineer who can be part of planning, engineering ... and overseeing our SIEM ( Security Information Event Manager) environment which is...of common computing platforms, including: Windows, RedHat & Ubuntu Linux Servers. + Experience in analyzing general system processing… more
    Lumen (09/30/25)
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  • Cyber Security Engineer Senior

    Lockheed Martin (Colorado Springs, CO)
    …cybersecurity engineering or systems administration experience\. * Good working knowledge of Linux or Windows based systems\. * Information Assurance Technician ... * Conducting vulnerability scans * Continuous monitoring of the security posture of the system * Assisting with Government...essential\. You should have a solid working knowledge of Linux or Windows based systems and have an active… more
    Lockheed Martin (08/29/25)
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