• Systems Engineer, Senior

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    …in modeling and simulation within a defense or national security environment + Experience with computational analysis, Monte Carlo simulations, multi-physics ... modeling , model-based systems engineering ( MBSE )...Clearance : Applicants selected will be subject to a security investigation and may need to meet eligibility requirements… more
    BOOZ, ALLEN & HAMILTON, INC. (11/17/25)
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  • Security Assurance Program Manager CTJ…

    Microsoft Corporation (Reston, VA)
    modeling , cyber security , or anomaly detection **Other Requirements:** ** Security Clearance Requirements** **:** Candidates must be able to meet ... Verification:** This position requires successful verification of the stated security clearance to meet federal government customer requirements. You… more
    Microsoft Corporation (12/14/25)
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  • Senior Security Operations Engineer - Ctj…

    Microsoft Corporation (Reston, VA)
    …procedures, analyzes specific aspects of attempted or successful efforts to compromise systems security . + Escalates findings as appropriate within agreed ... (IT), or operations incident response OR equivalent experience. **Other Requirements:** Security Clearance Requirements: Candidates must be able to meet… more
    Microsoft Corporation (12/11/25)
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  • Associate Systems Engineer

    The MITRE Corporation (Mclean, VA)
    …eligibility requirements, you must be a US Citizen to be considered for a security clearance . + This position requires a minimum of 50% hybrid on-site ... This position provides challenging opportunities to apply and expand one's systems architecture, modeling and tradespace analysis skills. Specific areas… more
    The MITRE Corporation (11/26/25)
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  • Systems Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    …with modeling and simulation in a defense or national security environment + Experience with computational analysis, Monte Carlo simulations, multi-physics ... modeling , model-based systems engineering (MBSE), or agent-based modeling +...Clearance : Applicants selected will be subject to a security investigation and may need to meet eligibility requirements… more
    BOOZ, ALLEN & HAMILTON, INC. (11/19/25)
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  • Model-Based Software Systems Engineer

    The MITRE Corporation (Mclean, VA)
    …in verbal, written, PC, presentation, and communications skills * Existing Security Clearance * Project-based teamwork experience This requisition requires ... position provides challenging opportunities to apply and expand one's systems architecture modeling , and trade space analysis...citizen with ability to possess and maintain a DoD clearance * Fluency in programming language(s) such as Java,… more
    The MITRE Corporation (12/12/25)
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  • Systems Engineer (On-site)

    G2 Ops, Inc. (Dahlgren, VA)
    …Documents (ICDs) Years of Industry Experience: 5 + years of relevant experience Security Clearance Requirement: Must be able to obtain and maintain Active ... Openings: 1 Full-Time Role Knowledge Requirements: + Skilled in modeling and creating new processes, methodologies, modeling ...DoD Top Secret Clearance What makes someone choose one company over another?… more
    G2 Ops, Inc. (09/22/25)
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  • Senior Systems Engineer (MBSE) (Onsite)

    RTX Corporation (Dulles, VA)
    …as only US citizens are eligible for the required security clearance .** **Qualifications We Prefer** + Experience with systems installation, integration, and ... US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship… more
    RTX Corporation (10/13/25)
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  • Sr Systems Engineer / Integration…

    Lockheed Martin (Suffolk, VA)
    …lead projects / initiatives across multiple functional areas and diverse groups ** Security Clearance Statement:** This position requires a government security ... **What We're Doing** At Lockheed Martin Rotary and Mission Systems , we're building the future of national security...the ability to obtain and maintain a DoD government clearance at the Top Secret level\. This position is… more
    Lockheed Martin (10/04/25)
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  • Entry Level - Systems /Mechanical/Aerospace…

    The MITRE Corporation (Mclean, VA)
    …of systems engineering + AI-enabled systems engineering + Agile systems engineering + Systems security engineering + Mechanical engineering, ... techniques, processes, languages, and best practices. + Experience with Systems Modeling Language (SysML) and/or Unified ...check, you may be submitted for a US Government Security clearance . This is determined by the… more
    The MITRE Corporation (11/21/25)
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