• Senior Software Engineer…

    RTX Corporation (Sterling, VA)
    …for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret **Senior Software Engineer ** **- Simulation & Training (Onsite)** Collins ... Aerospace is on the lookout for a talented Senior Software Engineer to join our Sterling, VA...readable + Perform multi-threaded software debugging and software integration + Support testing events, including simulation… more
    RTX Corporation (09/05/25)
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  • C++ Simulation Software…

    Applied Research Associates, Inc. (Arlington, VA)
    …Other responsibilities will include, but are not limited to, + supporting government-housed software and simulation environments, + software development and ... of technical expertise in defense, civil, and health technologies, computer software and simulation , systems analysis, environmental technologies, and testing… more
    Applied Research Associates, Inc. (08/21/25)
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  • Modeling and Simulation Engineer…

    KBR (Reston, VA)
    Title: Modeling and Simulation Engineer Specialist KBR is seeking a Modeling & Simulation Engineer (Specialist) with AFSIM experience to join a team of ... quantitative analysts and modelers that conducts modeling, simulation , and analysis (MS&A) of emerging concepts for the Defense Advanced Research Projects Agency… more
    KBR (08/14/25)
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  • Modeling and Simulation Engineer…

    KBR (Reston, VA)
    Title: Modeling and Simulation Engineer (Senior II) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... defense. Key Responsibilities: KBR is seeking a Modeling & Simulation Engineer (Senior II) to join a...or supporting decisions under uncertainty. + Support M&S and software development efforts. + Be able to lead small… more
    KBR (08/14/25)
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  • Modeling and Simulation Engineer…

    KBR (Reston, VA)
    Title: Modeling and Simulation Engineer (Senior I) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... defense. Key Responsibilities: KBR is seeking a Modeling & Simulation Engineer (Principal I) with AFSIM experience...under uncertainty. + Work collaboratively to support M&S and software development efforts. + Be able to lead small… more
    KBR (08/14/25)
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  • Mission Modeling and Simulation Analyst…

    SAIC (Alexandria, VA)
    …statistical analysis, and visualization of simulation outputs; and debugging simulation models and resolve software , scripting, or logic errors within ... in systems engineering and integration; enterprise IT, including cloud services; cyber; software ; advanced analytics and simulation ; and training. We are a… more
    SAIC (08/22/25)
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  • Sr Systems Engineer / Integration…

    Lockheed Martin (Suffolk, VA)
    …with Linux/Microsoft operating systems and Microsoft products\. \-3\-5 years simulation system software and hardware installation, configuration, modification ... mission\-focused technologies are developed, tested, and integrated\. **The Work** As a Systems Engineer Sr\., you'll play a vital role in enabling the CFI mission… more
    Lockheed Martin (07/12/25)
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  • Simulation Engineer - TS/SCI…

    Leidos (Reston, VA)
    **Description** The Mission Solutions Business Area at Leidos has an opening for a Simulation Engineer in Reston, Virginia. The primary focus of the work is ... systems simulation related to reverse engineering Weapons of Mass Destruction...+ Working knowledge of MATLAB, VENTSIM, COLE, or SCEPTRE software + Working knowledge of heating and ventilation systems,… more
    Leidos (09/26/25)
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  • Modeling & Simulation Engineer (N)

    SimIS Inc. (Norfolk, VA)
    …and next-generation platforms. To support our NATO customer, SimIS seeks a Modeling and Simulation Engineer to guide the design and operation of complex ... and execution of wargames, exercises, experiments, or other similar events. + Simulation software expertise (AnyLogic, Arena, MATLAB/Simulink) is desirable. +… more
    SimIS Inc. (09/17/25)
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  • Mid-Level Modeling and Simulation…

    KBR (Chantilly, VA)
    Title: Mid-Level Modeling and Simulation Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... of space defense. KBR is seeking a Modeling And Simulation Engineer with in-depth knowledge of satellite...such as STK, SOAP, MATLAB, and potentially organically developed software + Analysis of space systems, performance metrics, timelines,… more
    KBR (09/16/25)
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