• 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. (11/20/25)
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  • Modeling And Simulation

    KBR (Chantilly, VA)
    Title: Modeling And Simulation 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 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 (11/07/25)
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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. (11/17/25)
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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. (11/21/25)
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  • Senior MBSE Systems Engineer

    CACI International (Sterling, VA)
    Senior MBSE Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of ... None * * * **The Opportunity:** Join CACI as a Model-Based Systems Engineer (MBSE) and contribute to a dynamic counter-unmanned aircraft systems (C-UAS) mission that… more
    CACI International (11/18/25)
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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 (09/12/25)
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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 (09/16/25)
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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 (12/07/25)
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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 Systems Engineer

    Parsons Corporation (Centreville, VA)
    …redefine what's possible. **Job Description:** Parsons is looking for an amazingly talented ** Senior ** **Systems Engineer ** to join our team! In this role, you ... knowledge of systems engineering principles and methodologies. + Experience with system modeling , simulation , and analysis tools. **What Desired Skills You'll… more
    Parsons Corporation (12/02/25)
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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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  • Senior Systems Engineer

    Leidos (Reston, VA)
    …and solution architects to ensure project goals align. + Contribute to the modeling , simulation , and analysis of systems throughout their lifecycle, supporting ... Must be a US Citizen **Preferred Qualifications:** + Experience with model and simulation environments to support simulation and testing. + Experience with… more
    Leidos (11/13/25)
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  • Senior Operational Test and Evaluation…

    Bluepath Labs (Sterling, VA)
    …BluePath focuses on the intersection of technology and national security. The Senior Engineer is responsible for planning, conducting, and analyzing tests ... and Evaluation), and the DHS SELC framework. + Proficiency in modeling and simulation tools, digital engineering, or data management platforms to support… more
    Bluepath Labs (10/07/25)
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  • Senior Mechanical Engineer

    Leidos (Reston, VA)
    …Cybersecurity experience - Monitoring advanced threats and managing security services. + Modeling and Simulation support. Augmented Reality / Virtual Reality ... Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The...Wonderware, Emerson, etc. + Experience with one or more modeling programs such as Revit MEP, SketchUP. Solidworks, VentSIM,… more
    Leidos (09/26/25)
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  • Senior Research Engineer , Advanced…

    Lockheed Martin (Arlington, VA)
    …research to lead future technology advances in applied formal methods, simulation , test, verification, validation, and certification of autonomous and AI\-enabled ... game\-theoretic control \_ \- Computational cognitive science and cognitive modeling \- Compute at edge: neuromorphic computing or other non\-conventional… more
    Lockheed Martin (10/31/25)
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  • Program Protection (P2) Systems Engineer

    SAIC (Chantilly, VA)
    …and CONOP trades for future systems; and system-level analysis of concept using various modeling and simulation tools. The engineer shall also be able ... **Description** SAIC is seeking an experienced **Program Protection Systems Engineer ** who enjoys thinking outside of a box with technical and practical… more
    SAIC (12/05/25)
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  • Satellite Guidance Navigation and Control…

    General Atomics (Herndon, VA)
    …implementations in satellite systems and their applications. + Experience with physics-based modeling of dynamic systems and Monte Carlo simulation analysis. + ... industrial, and commercial customers worldwide. We have an exciting opportunity for a GNC Engineer to join our CSS group located in Herndon, VA. The CSS group… more
    General Atomics (12/04/25)
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  • Electrical Engineer - Multiple Positions…

    Leidos (Reston, VA)
    …systems * Experience with substation protective systems design * Experience in modeling and simulation of electrical distribution systems and SCADA control ... The Mission Solutions Business Area at Leidos has an opening for an Electrical Engineer in Reston, Virginia. The primary focus of the group is reverse engineering… more
    Leidos (10/04/25)
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  • SIGINT Assessments & Data Analytics…

    KBR (Chantilly, VA)
    …other standard analysis tools. + Ability to clearly and concisely present analysis data. + Modeling and Simulation . Belong, Connect and Grow at KBRAt KBR, we are ... Title: SIGINT Assessments & Data Analytics Engineer Belong. Connect. Grow. with KBR! KBR's National...engage with various internal and external stakeholders to include senior executive officials, military officers, development contractors, and end… more
    KBR (10/31/25)
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