• Senior Systems Engineer (MBSE) (Onsite)

    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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  • 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 ... of guidance and control algorithms using control theory and Monte Carlo simulations . + Undertake requirements capture, performance trades and design activities. +… more
    General Atomics (09/04/25)
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  • Senior System Engineer (C)

    SimIS Inc. (Dahlgren, VA)
    …to provide combat system simulation support to the Warfare Analysis and Digital Modeling (M) Combat System Simulations Branch (M33), Naval Surface Warfare Center ... (NSWCDD), at Dahlgren, VA. The candidate will provide system level requirements analysis, facility and system design, network design, market/trade studies and analysis, and logistics support in support of an overall effort to provide high fidelity simulation… more
    SimIS Inc. (08/07/25)
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  • Senior Associate Systems Engineer

    L3Harris (Springfield, VA)
    …operational and strategic objectives. . Experience with software languages for scripting, modeling , simulations , and data transfers, including Python, PERL, or ... domains in the interest of national security. Job Title: Senior Associate, Systems Engineer - Watch Officer (Active TS/SCI w/CI Poly Required) Job Code: 25423 Job… more
    L3Harris (07/17/25)
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  • Senior Software Developer - TS/SCI Clearance…

    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 research ... for designing and developing browser-based applications, backend data ETL, 3D modeling , and AI integration. This position requires advanced knowledge (at least… more
    Leidos (09/21/25)
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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 ... directly supporting senior stakeholders. + Support development of models and simulations to predict expected mission performance against requirements. + Support… more
    SAIC (08/13/25)
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  • Lead, Systems Engineering (UAV Propulsion)

    L3Harris (Ashburn, VA)
    …cyber domains in the interest of national security. Job Title: Lead, Systems Engineer (UAV Propulsion) Job Code: 27118 Job Location: Ashburn, VA Job Description: As ... the Lead, Systems Engineer , you will be responsible for hardware and software...from design verification test efforts + Develop and run simulations and other analysis tools to predict system performance… more
    L3Harris (08/08/25)
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  • Solution Architect

    Leidos (Chantilly, VA)
    …on intelligent automation, full spectrum cyber, systems engineering, AI/ML-driven analytics, modeling and simulations , and secure supply chain logistics ... years of relevant experience will be considered. *Experience as a technical engineer on government contracts or related work. *Awareness of leading technology… more
    Leidos (08/15/25)
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  • Principal Optical System Architect (Remote)

    TE Connectivity (VA)
    …across optical, electrical, thermal, and mechanical domains. + Conduct end-to-end simulations and modeling to optimize signal integrity, power efficiency, ... the needs of a faster, more connected world. As the R&D Product Development Engineer - Optical System Architect (SA), you will drive the next generation of… more
    TE Connectivity (07/09/25)
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