• Senior Modeling & Simulation

    SAIC (Dahlgren, VA)
    **Description** SAIC is seeking a full-time Modeling & Simulation (M&S) Engineer to support the Program Executive Office Integrated Warfare Systems (PEO ... The role involves the development, implementation, integration, and testing of high-fidelity modeling and simulation systems that support the evaluation of… more
    SAIC (11/05/25)
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  • Mission Modeling and Simulation

    SAIC (Alexandria, VA)
    **Description** SAIC is seeking motivated and detail-oriented ** Senior Modeling and Simulation Analysts - Senior Engineers** to join our dynamic team. ... and engineers to support the development and implementation of modeling and simulation (M&S) solutions for a...and execution of M&S projects under the guidance of senior analysts. This includes creating models, running simulations, and… more
    SAIC (08/22/25)
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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. (10/21/25)
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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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  • Senior Level Simulations Accreditation…

    Amentum (Dahlgren, VA)
    Amentum is seeking Senior Simulations Accreditation Systems Engineer to join our team. The role requires a strong understanding of systems engineering ... principles, modeling and simulation methodologies, and relevant industry standards. You will be part of our growing systems, information technology & software… more
    Amentum (11/13/25)
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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 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 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 Engineer

    Nou Systems, Inc. (Fort Belvoir, VA)
    …defense systems and improve capabilities. We are pleased to announce an opening for a senior engineer who will join our Engineering Services Team in the National ... IDIQ contract. The candidate will serve as a key senior member of the RETS technical team, positioning them...and relevant Task Orders (TOs) + Provide mission engineering, modeling & simulation , developmental test & evaluation,… more
    Nou Systems, Inc. (11/04/25)
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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 (11/16/25)
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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

    SAIC (Chantilly, VA)
    …knowledge while increasing their responsibilities. SAIC has an opening for a Senior Systems Engineer to provide Systems Engineering and Technical Assistance ... mission processing + Experience with use of architecting to support senior level enterprise decision making + Proven experience/familiarity with architecture tools… more
    SAIC (08/22/25)
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  • Senior Electrical Engineer (H)

    SimIS Inc. (Dahlgren, VA)
    …physics on terminal parameters. The candidate will also utilize SPICE/PSPICE modeling of circuits, schematic capture, printed circuit board layout, and circuit ... + Demonstrates understanding of power semiconductor physics + Performs SPICE/PSPICE modeling of circuits + Conducts schematic capture and printed circuit board… more
    SimIS Inc. (10/09/25)
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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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  • GEOINT Payload Systems Engineer

    SAIC (Chantilly, VA)
    …GSIA program office equities are protected. + Assess payload technical performance and modeling and simulation results. Identify risks to program plans and ... **Description** SAIC is seeking a Payload Systems Engineer to support the NRO GEOINT System Integration...development of new principles and concepts. + Participates with senior managers to establish strategic plans and objectives. +… more
    SAIC (11/08/25)
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  • SME SIGINT Engineer

    KBR (Chantilly, VA)
    …national security and shape the future of space defense. KBR is seeking a Senior SME SIGINT Systems Engineer with technical and engineering skills and relevant ... Title: SME SIGINT Engineer Belong. Connect. Grow. with KBR! KBR's National...Government in defining new mission requirements, performing oversight of modeling and simulation , architectural definition clarifying the… more
    KBR (11/07/25)
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  • Command, Control, Communications, and Battle…

    Chenega Corporation (Fort Belvoir, VA)
    …and initiatives; coordinate IV&V activities for all C2BMC and OPIR. + Offer expertise in Modeling and Simulation + Provide expertise in threat modeling . + ... Command, Control, Communications, and Battle Management (C3BM) Principal Systems Engineer Ft. Belvoir, VA Join our Talent Network Command, Control, Communications,… more
    Chenega Corporation (09/14/25)
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  • Mechanical Engineer

    Leidos (Springfield, VA)
    …**Leidos - Multi-Domain Solutions (MDS) Division** **Position: Junior Level Mechanical Engineer ** Leidos and its Multi-Domain Solutions (MDS) division are seeking a ... highly motivated **Junior Mechanical Engineer ** to support the planning, design, and analysis of...offers the opportunity to work under the mentorship of senior engineers and contribute to system layout, equipment selection,… more
    Leidos (10/23/25)
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  • Lead/ Principal Nuclear Engineer

    MPR Associates (Alexandria, VA)
    …at MPR engage in diverse and challenging projects involving neutronics modeling and simulation , thermal-hydraulics, material irradiation, radiation shielding, ... and other research and test facilities. We are currently seeking an experienced nuclear engineer to guide, challenge, and mentor our growing team in a variety of… more
    MPR Associates (09/26/25)
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  • Systems Engineer III

    Belcan (Chantilly, VA)
    …with systems engineering tools and software used for requirements management, modeling and simulation , configuration management, and project documentation (eg, ... Systems Engineer III Job Number: 355773 Category: Systems Engineering...Engineering. Advanced degrees or certifications may be preferred for senior or specialized positions. * Technical Knowledge: Strong understanding… more
    Belcan (10/03/25)
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