• Systems Engineer (Level 4)

    Lockheed Martin (Littleton, CO)
    …will bring 3\+ years of relevant systems engineering experience * Active Top Secret security clearance * Ability to work onsite full\-time at our Littleton, ... Martin Space is looking for an innovative and experienced Systems Engineer to support the team that...and design review processes\. * Active or current Top Secret \(TS\) security clearance required; U\.S\. citizenship… more
    Lockheed Martin (12/04/25)
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  • Lead, Systems Engineer (RC-135…

    L3Harris (Nellis Air Force Base, NV)
    …connecting the space, air, land, sea and cyber domains in the interest of national security . Job Title: Lead, Systems Engineer (RC-135 Raven Simulations ... previous experience operating RC-135 Raven aircraft and/or mission training systems . + Must successfully obtain CompTIA Security +...time of hire with the ability to obtain Top Secret with SCI Security Clearance and CI… more
    L3Harris (11/19/25)
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  • Navigation Systems Engineer

    MIKEL, Inc. (Middletown, RI)
    …advance their skills and knowledge to provide solutions that exceed customer expectations. Position: Systems Engineer II / Electrical Engineer II MIKEL is ... seeking an experienced Navigation Systems Engineer /Technician to join our dynamic, high-exposure OHIO-class In-Service Engineering team. The Navigation … more
    MIKEL, Inc. (01/15/26)
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  • Staff Systems Engineer - Sentinel…

    Northrop Grumman (Chandler, AZ)
    Systems - Launch Vehicles has an exciting career opportunity for a Staff Systems Engineer for the Sentinel Program located in Chandler, AZ. **Position ... Overview:** The Staff Systems Engineer ...Overview:** The Staff Systems Engineer is expected to fully understand systems ...an Interim or active in-scope US Government DoD issued Secret security clearance which is required to… more
    Northrop Grumman (11/21/25)
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  • Systems Engineering Field Engineer

    Lockheed Martin (Groton, CT)
    …critical partner in strategic deterrence by maintaining complex hardware, software, and support systems for decades\. As a **Shipyard Field Engineer ** you will ... Space is a critical domain, connecting our technologies, our security and our humanity\. While others view space as...Mechanical Support Equipment installation and removal * Familiarity with Systems level testing * Interim Secret Clearance… more
    Lockheed Martin (01/10/26)
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  • Senior Principal Systems Engineer

    RTX Corporation (El Segundo, CA)
    …the demands of a rapidly evolving global market. We are seeking a **Senior Principal Systems Engineer ** to work onsite in El Segundo, CA or Fullerton, CA. **A ... date.​ US citizenship is required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** Secret - Current **Raytheon Company,… more
    RTX Corporation (01/16/26)
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  • Staff Modeling & Simulation Systems

    Northrop Grumman (Linthicum Heights, MD)
    …the best work of your career. We are looking for a Staff Modeling & Simulation Systems Engineer to join our team in Baltimore, MD. This position requires 100% ... special program access (SAP). **Basic Qualifications for Staff Modeling & Simulation Systems Engineer :** + Bachelor's degree with 12 years of experience,… more
    Northrop Grumman (10/29/25)
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  • Systems Engineer III

    SOS International LLC (Scott Air Force Base, IL)
    …enable national security missions worldwide. **Job Description** **Overview** SOSi is seeking a Systems Engineer to join our team at Scott AFB, IL. A ... Systems Engineer is responsible for...Communications or Security is mandatory. + Active SECRET security clearance is a non-negotiable prerequisite. +… more
    SOS International LLC (01/07/26)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Plano, TX)
    …US Air Force's critical airborne command-and-control fleet. We need you! As a Senior Systems Engineer , you will use your skills and expertise to research, ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...tools + The ability to obtain and maintain a Secret US Security Clearance is required **Qualifications… more
    Sierra Nevada Company, LLC (01/06/26)
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  • Cyber Security Engineer IV

    SOS International LLC (Reston, VA)
    …identity, and cloud workloads aligned with zero-trust principles. + Cloud Security : Engineer guardrails (policies, blueprints, landing zones), encryption, ... security , and application security . + Experience with security technologies such as intrusion detection/prevention systems , SIEM, antivirus software,… more
    SOS International LLC (12/31/25)
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