• Staff Engineer

    Applied Research Associates, Inc. (Arlington, VA)
    …to form process and facility design packages. + Perform engineering calculations and modeling to support design of mechanical systems , process layouts, and ... expertise in defense, civil, and health technologies, computer software and simulation , systems analysis, environmental technologies, and testing and… more
    Applied Research Associates, Inc. (09/27/25)
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  • Weapons of Mass Destruction (WMD) Engineer…

    Dignitas Technologies LLC (Reston, VA)
    …with commercial software for engineering and materials characterization and analysis + Modeling and simulation expertise with engineering analysis tools or ... (WMD) Engineer or Scientist that will support engineering analysis, modeling , testing, and software development as a part of...+ Develop models and assessments of WMD and underground systems and auxiliary support and supply systems .… more
    Dignitas Technologies LLC (09/22/25)
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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 ... support the Government in defining new mission requirements, performing oversight of modeling and simulation , architectural definition clarifying the types of… more
    KBR (08/08/25)
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  • Junior Mechanical Engineer

    Leidos (Chantilly, VA)
    …will support the planning, design, and analysis of mechanical systems -primarily Heating, Ventilation, and Air Conditioning (HVAC)-for mission-critical operations in ... government, commercial, and institutional facilities. Working under the guidance of senior engineers, this role involves assisting with system layout, equipment… more
    Leidos (08/23/25)
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  • Mid-Level Image Scientist

    KBR (Springfield, VA)
    …IR, MSI/HSI, RADAR, and LIDAR, on both space or airborne platforms. + Simulation and modeling experience and ability to develop algorithm description ... broad range of assessments and assessment tasks both independent and with senior guidance. This individual will also support algorithm development and validation… more
    KBR (07/18/25)
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  • Cooling Engineer - Mechanical (Engineer 3)

    HII (Chesapeake, VA)
    …and marine standards (eg, MIL-STD, ABS, etc.). + Experience with system-level modeling and simulation tools. + Active security clearance. Physical Requirements ... its fleet. With a holistic approach to life-cycle maritime defense systems -from small watercraft to submarines, surface combatants and aircraft carriers-HII ensures… more
    HII (09/29/25)
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  • Summer 2026 Aeromechanical Engineering Intern

    AeroVironment (Reston, VA)
    …, you will support the development of **small unmanned aerial vehicle (UAV) systems ** for both military and commercial applications. You will work closely with ... gaining hands-on experience in the design, prototyping, and testing of mechanical systems for aerial platforms. This internship offers a unique opportunity to apply… more
    AeroVironment (09/17/25)
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  • AI/ML Software Engineer

    Rite-Solutions Inc. (Dahlgren, VA)
    …operational requirements, conducting cyber analyses and assessments, and developing and performing modeling and simulation in support of different cyber threat ... capabilities to meet current Cyber Defensive needs. As a Senior Developer on this program, you will be tasked...+ Participating in security architecture reviews of large enterprise systems + Participating in the development of new … more
    Rite-Solutions Inc. (09/02/25)
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  • SIGINT Assessments & Data Analytics Engineer

    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 ... Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense.… more
    KBR (08/01/25)
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  • Cloud Architect SETA

    SAIC (Herndon, VA)
    …or Oracle Cloud Infrastructure (OCI) + Large-scale data architecture, data modeling , database design, and information systems implementation + Demonstrated ... services supporting digital modernization programs in areas such as systems engineering, multi-cloud computing, cybersecurity, data science and analytics, artificial… more
    SAIC (08/16/25)
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