• Principal/Senior Principal Systems

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 25% of the Time **Description** At Northrop Grumman, our ... We are looking for a Principal or Senior Principal Systems Engineer to join our team at...+ Track/log Real World Events **Basic Qualifications:** + DoD Top Secret clearance that is or has… more
    Northrop Grumman (08/22/25)
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  • Software Engineer TS /SCI Poly

    Leidos (Aurora, CO)
    …and/or experience working with XHTML, HTML, XML, XSLT + Experience developing on Windows , and/or Linux operating systems + Must have a strong understanding ... **Description** Leidos is looking for a Software Engineer to join a high performing agile team...an agile development team. You must have an active/current TS /SCI Polygraph up front (this is firm). The development… more
    Leidos (09/15/25)
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  • Software Engineer TS /SCI Poly

    Leidos (Aurora, CO)
    …and/or experience working with XHTML, HTML, XML, XSLT + Experience developing on Windows , and/or Linux operating systems + Must have a strong understanding ... has a new and exciting opportunity for a **Software Engineer ** in our **National Security Sector's (NSS) Cyber &...an agile development team. You must have an active/current TS /SCI Polygraph up front (this is firm). The development… more
    Leidos (08/26/25)
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  • Automated Test Framework Software Engineer

    Leidos (Aurora, CO)
    …source control and configuration management tools. + Must have experience working in Windows and/or Linux operating systems and experience working in a ... has a new and exciting opportunity for an **Automated Test Framework Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area… more
    Leidos (09/27/25)
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  • Software Engineer TS /SCI Poly

    Leidos (Aurora, CO)
    **Description** Leidos has an exciting opportunity for a Software Engineer ! *Must have an active TS /SCI Polygraph up front. No exceptions.* You will perform ... as both an individual and a member of our top -notch agile development team building a large complex enterprise...XML canonicalization, digital signatures). Must have experience developing on Windows , and/or Linux operating systems . Must have… more
    Leidos (09/26/25)
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  • Systems Administrator ( TS /SCI…

    Fluor (Aurora, CO)
    …* Managing and creating policies in an Active Directory/Group Policy. * Hardening Windows systems and patching remediating as required in a timely manner. ... polygraph * Security + certification or ability to obtain * Install/configure Windows operating systems and software applications to include Active Directory,… more
    Fluor (10/29/25)
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  • Systems Engineer - Clearance…

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression of ... **Description:** **WHAT WE'RE DOING** At Lockheed Martin, we engineer innovative solutions to deliver resilient systems...a Engineers in support of development infrastructures consisting of Windows and Linux systems \. **WHY JOIN US**… more
    Lockheed Martin (11/01/25)
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  • Systems Engineer 4 (25-539)

    Northrop Grumman (Colorado Springs, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Integration offers an excellent opportunity for an Sr Principal Engineer Systems - Global Level II Sys...+ Applicants must have a current, active in-scope DoD-issued ** Top Secret /SCI** security clearance at the time… more
    Northrop Grumman (11/08/25)
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  • Sr. Specialist, Software Engineer

    L3Harris (Colorado Springs, CO)
    …experience. In lieu of a degree, minimum of 10 years of prior related experience. + Top Secret or TS /SCI Clearance + Experience in VMWare and Hyper-V, and ... interest of national security. Job Title: Sr. Specialist, Software Engineer / Virtualization Engineer Job Code: 28592...troubleshooting and support of new system fielding. + Maintain Top Secret Clearance which requires US Citizenship.… more
    L3Harris (09/12/25)
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  • Principal Software Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …clearance is required prior to start date. An active and transferable US government issued Top Secret security clearance that can be crossed over to a TS ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI - Current At Raytheon, the foundation of everything...+ Experience working with Oracle databases. + Experience with Windows and Red Hat Linux operating systems .… more
    RTX Corporation (10/09/25)
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