• Systems Engineer - Subject Matter Expert…

    Noblis (Chantilly, VA)
    …server environments, and operating systems with special emphasis on Top Secret classification enclaves. Your extensive expertise in Nutanix hyper-converged ... changes to network hardware, infrastructure server environments, and operating systems in Top Secret environments....deployments + Security accreditation processes (RMF, NIST 800-53) for TS /SCI systems + Advanced system … more
    Noblis (12/03/25)
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  • Systems Architect Sr.

    Lockheed Martin (King Of Prussia, PA)
    …experience performing system engineering, architecture, or analysis in a medium to large scale system * Must have Top Secret to start with the ability to ... is Ours Lockheed Martin Space is seeking a **senior systems architect ** to join the Global Security...obtain a TS /SCI Security Clearance...including SRR, SDR, PDR, or CDR * Experience with enterprise / system of systems design or… more
    Lockheed Martin (12/05/25)
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  • Model-Based Systems Engineer, Senior

    BOOZ, ALLEN & HAMILTON, INC. (Lexington Park, MD)
    …lifecycle + Experience with modeling tools, including Magic Draw or Cameo, Sparx Enterprise Architect , or IBM Rhapsody + Experience with the practical ... Model-Based Systems Engineer, Senior The Opportunity: Are you looking...object-oriented programming languages, including C++, Java, or Python + Top Secret clearance + Master's degree in… more
    BOOZ, ALLEN & HAMILTON, INC. (11/08/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Richardson, TX)
    …issued security clearance is required prior to start date with the ability to obtain Top Secret after start. + Leadership and mentoring experience systems ... system requirements. + Design, develop, and model complex systems and sub- systems . + Create and verify...Proficiency with MBSE tools like MagicDraw CAMEO, Rhapsody, or Enterprise Architect . + Expertise in building complex… more
    RTX Corporation (10/01/25)
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  • Systems Engineer II - NC3 Programs…

    RTX Corporation (Richardson, TX)
    …+ Experience with Model-Based System Engineering (MBSE) design tools ( Enterprise Architect , Cameo, or equivalent) using SysML. + Experience working ... career?** Embark on a journey where your expertise in systems engineering will help shape the future of aerospace...prior to start date with the ability to obtain Top Secret after start. + US citizenship… more
    RTX Corporation (10/09/25)
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  • Senior Principal Systems Engineer…

    RTX Corporation (Mckinney, TX)
    …Language (SysML) and Model-Based Systems Engineering (MBSE) toolsets (eg, Cameo Enterprise Architect , IBM Rational Rhapsody) **What We Offer​:** _Some of our ... customer and user community to develop and refine autonomous system . + Support the Systems Engineering leadership...or university. + Active and transferable US government issued Top Secret security clearance + Experience in… more
    RTX Corporation (11/04/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Cedar Rapids, IA)
    …issued security clearance is required prior to start date with the ability to obtain Top Secret prior to start date. + Two (2) Years of experience capturing ... citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current Are you ready to design the...Experience with MBSE tools like MagicDraw CAMEO, Rhapsody, or Enterprise Architect + Experience with requirements tool… more
    RTX Corporation (09/13/25)
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  • IT Infrastructure Architect…

    Guidehouse (Arlington, VA)
    …**:** + Bachelor's degree in IT, enterprise architecture, or computer-related field + **Active Top Secret ( TS ) or Q clearance required** + Minimum of SIX ... Required** **:** Up to 10% **Clearance Required** **:** Active Top Secret ( TS ) **What You...TS ) **What You Will Do** **:** + Provide enterprise architecture (IT infrastructure architecture) services within the … more
    Guidehouse (10/23/25)
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  • SIGINT Mission Engineer

    SAIC (Chantilly, VA)
    …architecture impacts, architecture trades, and architecture performance assessments with the Enterprise , Chief Architect , Chief Engineer, and Program Offices. ... system and design, interface and data architectures, validation and verification, systems integration, and system & operational performance analysis. +… more
    SAIC (11/06/25)
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  • M&S Developer

    Nou Systems, Inc. (Dayton, OH)
    …or plugin development). + Experience with MBSE/SysML modeling tools (Cameo, MagicDraw, Enterprise Architect ). + Familiarity with CI/CD workflows and version ... and validation of models and simulations. + Collaborate with engineers and system architects to ensure seamless system -of- systems integration. Basic… more
    Nou Systems, Inc. (12/03/25)
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