• Simulation Engineer - TS/SCI Required

    Leidos (Reston, VA)
    …their interactions and to uncover vulnerabilities. Simulation types include: system of systems simulations , distributed simulations , and object-oriented ... + Design, develop, evaluate, validate, verify, analyze critical infrastructure related simulations (eg electric power, HVAC, building control systems ) to… more
    Leidos (09/26/25)
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  • Systems Test Engineer

    ManTech (King George, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Systems Test Engineer ** to join our team in **King George, VA** . This is an **on-site** position. ... Combat System as well as interfacing sensors and ship systems , OR Ship Self Defense System (SSDS) Combat System...Experience with the Next Generation Simulation (NGS) or other simulations + Experience with Electronic Warfare (EW) Element SLQ-32… more
    ManTech (09/16/25)
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  • Senior Associate Systems Engineer

    L3Harris (Springfield, VA)
    …and cyber domains in the interest of national security. Job Title: Senior Associate, Systems Engineer - Watch Officer (Active TS/SCI w/CI Poly Required) Job ... experience with, space operations, including managing and monitoring satellite systems , performing telemetry analysis, and conducting mission-critical activities such… more
    L3Harris (07/17/25)
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  • Systems Engineer II (S)

    SimIS Inc. (Dahlgren, VA)
    …and validation activities for complex systems + Familiarity with military training systems and combat system simulations + Mandatory : Must meet DOD 8570 ... position and is contingent upon award. Job Description: SimIS, Inc. seeks Systems Engineers II to perform systems engineering functions including requirements… more
    SimIS Inc. (09/22/25)
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  • Chief Engineer

    Leidos (Reston, VA)
    …Mission Solutions Business Area is seeking a highly experienced **Chief Engineer ** to lead its multidisciplined engineering team in utilizing advanced technologies ... and Hardened Facility defeat capabilities through enhanced analysis, modeling and simulations of critical processes, system of system infrastructures and structural… more
    Leidos (07/18/25)
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  • Software Engineer

    Actalent (Fairfax, VA)
    Job Title: Software Engineer Job Description This opportunity supports an active Department of Defense (DoD) missile contract as a software developer working on ... in various software validation environments, such as Hardware-in-the-Loop (HWIL) simulations , on-site integration labs, and occasional flight tests at various… more
    Actalent (09/23/25)
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  • Electronics Engineer -Modeling

    CACI International (Charlottesville, VA)
    …predict future capabilities and battlefield effectiveness, and create of high-fidelity models and simulations of systems . Join our Team as we drive all-source ... Electronics Engineer -Modeling Job Category: Engineering Time Type: Full time...support the engineering analysis and modeling of foreign RF systems and signal processing. We need experts to support… more
    CACI International (08/28/25)
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  • Mechanical Engineer -Modeling

    CACI International (Charlottesville, VA)
    …and predict future capabilities and battlefield effectiveness, and create high-fidelity models and simulations of systems . Join our Team as we drive all-source ... Mechanical Engineer -Modeling Job Category: Engineering Time Type: Full time...lethality analysis and modeling of foreign armored vehicles, weapon systems , and UAS. We need experts to support the… more
    CACI International (08/30/25)
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  • Principal/Sr Principal Fault Management and System…

    Northrop Grumman (Dulles, VA)
    …they're making history. Northrop Grumman is hiring a qualified Principal/Sr. Principal Systems Engineer to support a National Security Space (NSS) Program ... either technical or nontechnical audiences is required. **Basic Qualifications:** + **Principal Systems Engineer ** - Bachelors of Science degree in technical… more
    Northrop Grumman (09/19/25)
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  • Senior Electrical Engineer

    CDM Smith (Newport News, VA)
    …studies of power systems and electrical calculations for electrical systems , lighting simulations , lighting layouts, communications, fire alarm, security, ... many aspects of electrical engineering, including the design of complex power systems , observation and construction services, and power system analyses, etc. We want… more
    CDM Smith (09/19/25)
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