• Entry-level Systems Engineer

    Serco (Orlando, FL)
    **Position Description** SERCO North America seeks a Systems Engineer with hands on Integration and Testing experience for a fast-paced, growing, dynamic ... + US Citizenship required, with the ability to obtain and maintain a DoD Secret clearance + Bachelorsdegree. + Experience working within formal engineering… more
    Serco (11/26/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Plano, TX)
    …keep our world united and sustain our way of living. Join our team! As a Systems Engineer for an Integrated Digital Environment (IDE) team, you will ensure that ... Systems Experience, experience in development, integration, and test of software systems + An active Secret US Security Clearance is required… more
    Sierra Nevada Company, LLC (11/20/25)
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  • Principal Systems Engineer / I&T…

    RTX Corporation (Cedar Rapids, IA)
    …required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** DoD Clearance : Secret **Our nation's security depends on the ... Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship...do exactly that. This position is for a **Principal Systems Engineer (Integration and Test) - Embedded… more
    RTX Corporation (10/26/25)
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  • Sentinel - Systems Security Engineer

    Northrop Grumman (Roy, UT)
    …and launch your career today. Northrop Grumman Defense Systems is seeking a ** Systems Security Engineer ** , (Level 2), that will support the Sentinel (GBSD) ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...+ Must be a US Citizen with an **active DoD Secret Clearance ,** at time of application,… more
    Northrop Grumman (10/29/25)
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  • Senior Information Security Systems

    Leidos (MD)
    **Description** **Program Summary** As a Senior Information Security Systems Engineer (ISSE) you will join a small team of security engineers providing ... providing feedback on completeness and compliance of its content ** CLEARANCE REQUIRED** : Active TS/SCI with polygraph. US Citizenship...minimum of 20 years of experience as an Information Systems Security Engineer (ISSE) or System … more
    Leidos (11/26/25)
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  • Systems Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Scott Air Force Base, IL)
    Systems Engineer The Opportunity: Successful systems projects demand more than technical know-how, they require vision. As a Systems Engineer , you ... assess EMS technologies like radar, satellite communications, and wireless systems , and identify emerging threats, including jamming, spoofing, and eavesdropping.… more
    BOOZ, ALLEN & HAMILTON, INC. (10/29/25)
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  • Senior Systems Engineer

    SMX (Patuxent River, MD)
    Senior Systems Engineer (4580)at SMX(View all jobs)...three (3) years directly related to Department of Defense ( DoD ) systems + Hands on experience with ... Patuxent River, MD SMX is currently seeking a Senior Systems Engineer to support our PMA-281 customer...to advance the field **Required Skills & Experience** + Clearance Required: Top Secret + US Citizenship is required… more
    SMX (11/14/25)
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  • Modeling & Simulation Engineer

    RTX Corporation (Woburn, MA)
    …as only US citizens are eligible for a security clearance ​ **Security Clearance :** DoD Clearance : Secret At Raytheon, the foundation of everything ... Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship...Analysis section is hiring for a **Modeling and Simulation Engineer , Systems Engineer II** .… more
    RTX Corporation (11/19/25)
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  • Senior Principal Systems Engineer

    RTX Corporation (Tewksbury, MA)
    …(SSE). The Radar Digital Product Line (RDPL) is seeking a Senior Principal Systems Engineer to lead development of digital radar system models, software ... Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship...+ Systems engineering experience with large, complex systems , DoD systems + Masters/PhD… more
    RTX Corporation (11/19/25)
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  • Cyber Systems Engineer - level 3…

    Northrop Grumman (Dulles, VA)
    …spirit to our collaborative teams. Northrop Grumman Space Systems is seeking a _Cyber Systems Engineer - level 3 or 4 to_ join our team of qualified, diverse ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the...our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,… more
    Northrop Grumman (11/18/25)
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