• Senior Principal Systems Engineer

    RTX Corporation (Mckinney, TX)
    …can be located in McKinney, TX or El Segundo, CA. **This position requires an active DoD Secret security clearance prior to the first day in order to access ... team is looking for an experienced **Senior Principal Systems Engineer ** to join our team. This is an onsite...or university. + Active and transferable US government issued Top Secret security clearance + Experience in… more
    RTX Corporation (11/04/25)
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  • Sr Principal Systems Engineer

    RTX Corporation (Richardson, TX)
    …is required, as only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret **Are you looking to make a ... to recapitalize with the next-generation capabilities. As our next **Senior** **Principal Systems Engineer ** we will provide the training and tools to help grow the… more
    RTX Corporation (11/01/25)
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  • DevOps Engineer II

    Sierra Nevada Company, LLC (Plano, TX)
    …. **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance. US Citizenship status is required as this ... We are seeking an Experienced DevSecOps Engineer to support development and integration of next-generation...compliance automation (eg, STIGs, RMF, IaC hardening) throughout the software lifecycle + **Ability to obtain/maintain a Secret more
    Sierra Nevada Company, LLC (10/22/25)
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  • Senior Systems Engineer

    Leidos (Gaithersburg, MD)
    …user workgroups, and vendors to manage the 4ACES platform **Clearance Level Required:** Top Secret clearance with SCI required. Ability to successfully pass a ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (10/04/25)
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  • Network Engineer - Wireless

    Trace Systems Inc (Portsmouth, VA)
    …and emerging systems and networks. Minimum Qualifications + Active, in-scope US Government issued Top Secret clearance. + Due to the nature of the work and ... Job Overview Job Title: Network Engineer - Wireless Location: Portsmouth, VA Job Responsibilities...an Information Assurance program that meets all Navy and DoD requirements. Duties and responsibilities include but are not… more
    Trace Systems Inc (09/16/25)
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  • Sentinel Sr. Principal Systems Safety…

    Northrop Grumman (Roy, UT)
    …safety, or closely related technical discipline + Must have an active US Government DoD Secret security clearance at time of application, current and within ... System experience (Minuteman III or similar military or industry experience) + Active Top Secret clearance with investigation in the last 6 years **Position… more
    Northrop Grumman (09/19/25)
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  • Principal Systems Engineer - BMD SME

    Chenega Corporation (Redstone Arsenal, AL)
    …Field with 12+ years of experience in missile defense-related or other complex, large DoD program/project + Active Secret clearance required with the ability to ... Principal Systems Engineer - BMD SME Redstone Arsenal, AL Join...efforts related to the above, including analysis efforts on DoD High-Performance Computing (HPC) + Develop analysis plans, run… more
    Chenega Corporation (09/15/25)
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  • Scientist, Sr. Mechanical Engineer - Space…

    L3Harris (Wilmington, MA)
    …+ Able to obtain and maintain a US Security Clearance Preferred Additional Skills: + Top Secret SCI/ DoD clearance preferred + Proficiency in design and 3D ... domains in the interest of national security. Job Title: Scientist, Sr. Mechanical Engineer - Space Optical Systems Job Code: 30813 Job Location: Wilmington, MA Job… more
    L3Harris (11/06/25)
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  • Lead Systems Engineer - Electronic Warfare…

    RTX Corporation (Goleta, CA)
    …only US citizens are eligible for a security clearance. **Qualifications We Prefer** + Active DoD Top Secret clearance with investigation within five years + ... hardware and software specifications. + Partner with the Program Chief Engineer in ensuring the engineering team aligns to cost/schedule. + Provide technical… more
    RTX Corporation (11/01/25)
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  • Secure Wireless Engineer

    General Dynamics Information Technology (Springfield, VA)
    …RQ198056 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... from threats. Deliver solutions to complex problems as a Secure Wireless Engineer at GDIT. Here, you'll tailor cutting-edge solutions to the unique requirements… more
    General Dynamics Information Technology (10/18/25)
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