• 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 ... planning data to support operational and strategic objectives. . Experience with software languages for scripting, modeling, simulations , and data transfers,… more
    L3Harris (07/17/25)
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  • Mission Modeling and Simulation Analyst…

    SAIC (Alexandria, VA)
    …the design, development, and execution of M&S projects under the guidance of senior analysts. This includes creating models, running simulations , and performing ... **Description** SAIC is seeking motivated and detail-oriented ** Senior Modeling and Simulation Analysts - Senior Engineers** to join our dynamic team. The… more
    SAIC (08/22/25)
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  • Senior Systems Engineer (MBSE)…

    RTX Corporation (Sterling, VA)
    …more secure world. Raytheon Technologies is seeking a Principal Systems Engineer (MBSE) to provide enterprise-wide systems engineering and integration support within ... tools such as Cameo Systems Modeler, as well as utilizing computer-based simulations to analyze and optimize the performance of complex systems. **Location:**… more
    RTX Corporation (09/03/25)
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  • Senior Software Developer - TS/SCI…

    Leidos (Reston, VA)
    **Description** The Mission Solutions Business Area at Leidos seeks a Software Engineer to lead the creation of new software capabilities within a matrixed ... collection, system design, data analysis, test, simulation, and verification of software simulation or decision systems. A successful applicant will be able… more
    Leidos (09/21/25)
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  • Radar Systems Engineer

    KBR (Arlington, VA)
    Title: Radar Systems Engineer KBR is seeking a Radar Systems Engineer to join our team in Dahlgren, VA supporting our operations at the Naval Surface Warfare ... be Electromagnetic Environmental Effects (E3). Responsibilities: + Requirements development, software verification, system integration support, antenna design, radar performance… more
    KBR (09/04/25)
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  • Lead/ Principal Nuclear Engineer

    MPR Associates (Alexandria, VA)
    …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 ... management responsibilities will be included. Duties/Responsibilities The Lead/ Principal Nuclear Engineer will: + Plan, lead, and enable the nuclear design/analysis… more
    MPR Associates (09/26/25)
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  • Nuclear Engineer

    MPR Associates (Alexandria, VA)
    …for continuous learning including topics beyond nuclear engineering. While a nuclear engineer 's work at MPR will focus on nuclear-related tasks, the engineer ... challenges across various projects including, for example: + Neutronics simulations and core design (Criticality safety evaluations, critical core configuration,… more
    MPR Associates (07/16/25)
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  • Satellite Guidance Navigation and Control…

    General Atomics (Herndon, VA)
    …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 ... power-constrained environments); unique system development; ground control and operational software development; embedded software development; and unique cyber… more
    General Atomics (09/04/25)
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  • Senior Mission Assessments SME

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a Senior Mission Assessments Engineer to provide mission analysis support to legacy, current, and future satellite programs. This ... senior stakeholders. + Support development of models and simulations to predict expected mission performance against requirements. + Support development… more
    SAIC (08/13/25)
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