• Systems Engineer (Level 4)

    Lockheed Martin (Littleton, CO)
    …tomorrow with you\. Lockheed Martin Space is looking for an innovative and experienced Systems Engineer to support the team that designs, develops, fields and ... activities of major significance to the nation's National Security Enterprise\. As a Systems Engineer , your roles and responsibilities will include: * Support… more
    Lockheed Martin (12/11/25)
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  • Software Systems Engineer

    CACI International (Sterling, VA)
    Software Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of ... Continental US * * * **Job Description:** CACI is looking for a self-motivated Systems Engineer with a background in software development to support the… more
    CACI International (12/09/25)
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  • Model Based Systems Engineer

    Lockheed Martin (Littleton, CO)
    …- - Lockheed Martin seeks an a highly motivated innovative and talented Model Based Systems Engineer \(MBSE\) to join the Global Security team and become a ... - **What does this role look like?** As a Systems Engineer for Model\-Based System Engineering \(MBSE\)...* 1\+ years professional experience\. * US citizenship required, Top Secret clearance required prior to start\. - -… more
    Lockheed Martin (12/04/25)
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  • Combat Systems Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Washington, DC)
    Combat Systems Engineer The Opportunity: As a systems engineer , you ask questions others don't. You understand the nuances of complex situations. You use ... and fast-paced Navy program management office ( PMO ) systems engineering and technical assistance ( SETA ) team,...Ability to support multiple government and contractor offices + Top Secret clearance + Bachelor's degree Nice If You… more
    BOOZ, ALLEN & HAMILTON, INC. (12/01/25)
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  • Principal Systems Engineer

    Sierra Nevada Company, LLC (Dayton, OH)
    …more about NC3 and SAOC here (https://www.sncorp.com/capabilities/nc3- systems /) . Are you a Systems Engineer who is interested in working on one of the ... airborne command-and-control fleet. We need you! As a Principal Systems Engineer with a software background, you...Experience + The ability to obtain and maintain a Top Secret US Security Clearance is required **Qualifications We… more
    Sierra Nevada Company, LLC (11/26/25)
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  • Senior MBSE Systems Engineer

    CACI International (Sterling, VA)
    Senior MBSE Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage ... * * **The Opportunity:** Join CACI as a Model-Based Systems Engineer (MBSE) and contribute to a...Science, Engineering Management, or a related field. + Current Top Secret (TS) clearance with the ability to obtain… more
    CACI International (11/18/25)
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  • Model-Based Systems Engineer (Mbse)

    Integration Innovation, Inc. (i3) (Dayton, OH)
    Overview The Model-Based Systems Engineer (MBSE) provides technical leadership and expertise in the application of Model-Based Systems Engineering methods to ... design, analyze, and optimize Department of Defense systems . This position leverages advanced MBSE tools, techniques, and frameworks to create digital… more
    Integration Innovation, Inc. (i3) (11/11/25)
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  • Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …sea and cyber domains in the interest of national security. Job Title: Specialist, Systems Engineer Job Code: 30582 Job Location: Greenville, TX (On-Site) Job ... and/or subsystems. The ideal candidate will have experience with systems engineer /architect work with a desire to...time of hire with the ability to obtain a Top Secret with SCI. + Must be a US… more
    L3Harris (11/08/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …and cyber domains in the interest of national security. Job Title: Sr. Specialist, Systems Engineer Job Code: 30686 Job Location: Greenville, TX (On-Site) Job ... Schedule: 1st Shift 9/80 Job Description: The Sr Specialist, Systems Engineer position is part of a...with the ability to obtain and maintain a DOD Top Secret (TS/SCI) Clearance. + Must be a US… more
    L3Harris (11/08/25)
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  • Sr. Spec, Systems Engineer

    L3Harris (Greenville, TX)
    …and cyber domains in the interest of national security. Job Title: Sr. Specialist, Systems Engineer Job Code: 30296 Job Location: Greenville, TX (On-Site) Job ... Schedule: 1st Shift 9/80 Job Description: The Sr. Specialist, Systems engineer (SE) will be responsible for...with the ability to obtain and maintain a DOD Top Secret (TS/SCI) Security Clearance. + Must be a… more
    L3Harris (10/24/25)
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