Modeling and Simulation Engineer, Mid-Level

About the role

SimTech, Inc., recognized as one of the 2026 Best Places for Working Parents, is seeking a Modeling and Simulation Engineer, Mid-Level to join our dynamic and diverse team in Huntsville, AL. This is an upcoming opening with opportunities for growth and professional development. SimTech offers a market leading compensation package with excellent benefits, work/life balance, outstanding retirement plan, career advancement and much more.

Responsibilities

• Evaluate overall missile performance through airframe, propulsion, aerodynamics, and actuator dynamics modeling.
• Build post-processing and analysis tooling in MATLAB, Python, and related environments.
• Develop, extend, and maintain a closed loop 6DOF flight simulation written in C/C++.
• Develop and integrate subsystem models spanning flight dynamics, control actuation system, motor, gimbal, seeker, guidance, navigation, and control.
• Integrate and test flight software in the loop, supporting software-in-the-loop (SIL) and hardware-in-the-loop (HIL) configurations.
• Plan and execute trade studies, sensitivity sweeps, and Monte Carlo analyses to assess performance drivers and margins.
• Generate clear and concise technical results, briefings, and documentation for internal teams and external customers.
• Collaborate with GNC (guidance and control), seeker, propulsion, and software engineers to validate models against test and flight data.

Qualifications

• Bachelor of Science Degree in Aerospace, Electrical, Mechanical, or related engineering field from an accredited institution.
• Demonstrated experience developing 6DOF or equivalent flight dynamics simulations.
• Proficiency in C/C++ for simulation development.
• Proficiency in MATLAB and/or Python for analysis, visualization, and automation.
• Working knowledge of GNC fundamentals: rigid body dynamics, coordinate frames, equations of motion, and control loops.
• Experience Modeling RF Seekers, Radar, Or Other Sensor Performance.
• Experience with gimbaled seeker kinematics, line-of-sight rates, and pointing and tracking algorithms.
• Familiarity with missile or tactical weapon system design and requirements flow down.
• Experience with SIL and HIL integration, real-time execution, and timing constraints.
• Experience with Monte Carlo methods, statistical performance assessment, and sensitivity analysis.
• Experience with version control systems (e.g., Git).