• Modeling & Simulation

    KBR (Reston, VA)
    Title: Modeling & Simulation Engineer ( Senior I) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering ... shape the future of space defense. KBR is seeking a Modeling & Simulation Engineer ( Senior I) with AFSIM experience to join a team of quantitative… more
    KBR (10/24/25)
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  • Modeling and Simulation

    BOOZ, ALLEN & HAMILTON, INC. (Alexandria, VA)
    Modeling and Simulation Engineer The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking to make an ... on national security? As a Modeling and Simulation ( M & S ) Engineer ,...to answer strategic questions, developing and briefing materials for senior management, and applying analytical and computational met hods,… more
    BOOZ, ALLEN & HAMILTON, INC. (12/19/25)
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  • Mid-Level Modeling and Simulation

    KBR (Chantilly, VA)
    Title: Mid-Level Modeling and Simulation Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... the future of space defense. KBR is seeking a Modeling And Simulation Engineer with...systems. We lead architectural assessments and report recommendations to senior US Government personnel guiding acquisition and execution of… more
    KBR (12/16/25)
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  • Systems Engineer , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Systems Engineer , Senior The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking to make an impact in ... leadership and mentoring while broadening your skillset into areas like modeling and simulation and computational analysis. Grow your skills by merging data… more
    BOOZ, ALLEN & HAMILTON, INC. (12/18/25)
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  • Multidisciplinary Senior Engineer

    SURVICE Engineering (Lexington Park, MD)
    …a leading organization, come see what we can offer you! Position Multidisciplinary Senior Engineer + Location: Patuxent River, Maryland + Security Clearance: ... tuition reimbursement. Position Summary SURVICE Engineering is currently seeking a Multidisciplinary Senior Engineer to support our Patuxent Area Operation. You… more
    SURVICE Engineering (12/02/25)
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  • Senior Digital Engineer

    SAIC (Chantilly, VA)
    **Description** NSS Sector has an opening for a Senior Systems Engineer to provide Systems Engineering and Technical Assistance (SETA) services to an IC ... + Applies systems engineering, systems modeling , product lifecycle management, modeling and simulation , and related techniques, tools, and methodologies to… more
    SAIC (12/11/25)
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  • Nuclear Engineer , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Nuclear Engineer , Senior Key Role: Provide nuclear weapons effects subject matter expertise to client research and development (R&D) modeling and ... control technology, or hard target defeat + Experience with nuclear weapons effects modeling and simulation tools + Knowledge of systems engineering, data… more
    BOOZ, ALLEN & HAMILTON, INC. (12/20/25)
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  • Hypersonic Senior Systems Engineer

    Leidos (Arlington, VA)
    …experienced engineers with a Hypersonics Aerospace background to lead Systems development and Modeling and Simulation (M&S) efforts based in the DC Metro Area. ... This is a senior engineering position integrating multiple design concepts and defining...below: + Aerodynamics / CFD + Aerothermal + Trajectory simulation + Material response + Mechanical design + Structural… more
    Leidos (12/20/25)
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  • Digital and Model-Based Systems Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Washington, DC)
    Digital and Model-Based Systems Engineer , Senior The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking ... customer-focused engineering solution. As a Digital and Model-Based Systems Engineer , you will support the implementation of a DE...) and MBE models, digital requirements, digital threads, various modeling and simulation tools, and modeling more
    BOOZ, ALLEN & HAMILTON, INC. (12/28/25)
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  • Senior System Engineer (C)

    SimIS Inc. (Dahlgren, VA)
    …and importance of others (work and win as a team). SimIS Inc seeks a System Engineer III to provide combat system simulation support to the Warfare Analysis and ... logistics support in support of an overall effort to provide high fidelity simulation systems and enable engineers to verify Combat Systems' performance in desktop… more
    SimIS Inc. (11/06/25)
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  • Senior OPIR Systems Engineer

    KBR (Chantilly, VA)
    Title: Senior OPIR Systems Engineer KBR is seeking a highly qualified OPIR Systems Engineer to provide Systems Engineer Technical Advisor (SETA) support ... for a USG Agency. As a Senior OPIR Systems Engineer , you will be...and assess total constellation performance + Supports and conducts modeling and simulation of Tracking OPIR sensor… more
    KBR (12/11/25)
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  • Systems Engineer (Journeyman, Full…

    Parsons Corporation (Reston, VA)
    …knowledge of systems engineering principles and methodologies. + Experience with system modeling , simulation , and analysis tools. + Domestic and/or international ... years of experience in systems engineering or a related role. **Systems Engineer , Senior :** + Bachelor's degree in Systems Engineering, Computer Science, or a… more
    Parsons Corporation (12/23/25)
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  • Senior SIGINT Systems Engineer

    KBR (Chantilly, VA)
    Title: Senior SIGINT Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... the future of space defense. KBR is seeking a Senior SIGINT Systems Engineer to be part...Government in defining new mission requirements, performing oversight of modeling and simulation , architectural definition clarifying the… more
    KBR (12/16/25)
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  • Systems Engineer , Senior

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** Bowhead seeks a Senior Systems Engineer as a Subject Matter Expert (SME) to support the development of technology solutions from project inception ... determination, conceptualization, design, development, testing, verification, and documentation of modeling and simulation based decision support system… more
    UIC Government Services and the Bowhead Family of Companies (12/04/25)
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  • Space Communication Senior Systems…

    SAIC (Chantilly, VA)
    …ensure GSIA program office equities are protected. + Assess technical performance and modeling and simulation results. Identify risks to program plans and ... **Description** SAIC is seeking a Space Communication Systems Engineer to support the NRO GEOINT System Integration...IT, including cloud services; cyber; software; advanced analytics and simulation ; and training. We are a team of 23,000… more
    SAIC (12/23/25)
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  • Network Unified Communications Design…

    Eliassen Group (Quantico, VA)
    **Network Unified Communications Design Engineer Senior - SMIT** **Quantico, VA** **Type:** Contract **Category:** Engineer **Industry:** Government ... (FCNSP) + Juniper Networks Certified Specialist Security (JNCIP-SEC) + Certified Modeling & Simulation Professional (CMSP) + Or equivalent experience… more
    Eliassen Group (12/19/25)
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  • Senior Project Development Engineer

    CMTA, Inc (Fairfax, VA)
    …and career opportunities. **Job Summary:** CMTA, a Legence company, is looking for a Senior Project Development Engineer in the federal market to help in our ... can easily make the transition to become an energy engineer within our Energy Solutions group. **Below are some...Systems (UMCS) and their operation + Experience with building simulation and bin spreadsheet modeling of ECMs… more
    CMTA, Inc (11/01/25)
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  • Senior Transportation/Traffic…

    Jacobs (Reston, VA)
    …play a key role in redefining how people and goods move. As a Senior Transportation/Traffic Engineer , you'll collaborate with a multidisciplinary team of roadway ... transportation planning, and operations analysis. * Proficiency in traffic modeling and simulation tools. * Strong communication...in civil engineering or a related field. * Professional Engineer (PE) license in the Commonwealth of Virginia. *… more
    Jacobs (10/24/25)
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  • Senior Associate Systems Engineer

    L3Harris (Springfield, VA)
    …land, sea and cyber domains in the interest of national security. Job Title: Senior Associate, Systems Engineer - Watch Officer (Active TS/SCI w/CI Poly ... up to date current operations picture. . Develop and utilize model and simulation tools to analyze satellite operations and predict system behavior under various… more
    L3Harris (10/15/25)
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  • CyberArk Engineer - Senior

    SAIC (Washington, DC)
    **Description** As a CyberArk Senior Systems Engineer , you'll play a key role in enhancing our cybersecurity and identity management capabilities. You'll ... developing maintenance plans, and adept troubleshooting. Additionally, proficient in data modeling and schema, with the ability to interpret and navigate Entity… more
    SAIC (12/19/25)
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