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Modeling and Simulation Engineer, Mid-Level
Overview
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.
This role requires developing and maintaining a high-fidelity 6DOF simulation of a weapon system with seeker and the digital environment used to characterize end-to-end system performance, supporting flight software integration, and performing trade studies that inform design and requirements decisions.
Responsibilities
Model and analyze RF seeker performance, including sensor control, tracking, and target engagement behavior.
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.
Other responsibilities as assigned.
Minimum Qualifications & Education Requirements and Desired Skillsets
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).
U.S. Citizenship with Active Secret Security clearance and ability to maintain the designated security clearance level is required.
Physical Description
Employees in these positions will function in a general office/cubicle setting environment, and laboratory/testing setting using standard office equipment and various electronic testing equipment, including a computer, telephone, printers, video equipment, computer software, and testing equipment. Will interact in a general office setting environment with various personnel; participate in meetings and contribute to team success; deliver timely results and produce reports; receive and communicate information; may include telework. May function in a specialized laboratory/testing environment using electronic testing equipment, computer software, and complex systems. May move and test equipment of various weights. Laboratory environment may require use of protective equipment (PPE) including but not limited to safety glasses and protective hearing and footwear. May be expected to work varying shifts and hours to ensure successful operation of activities in the organization due to business demands; travel occasionally for assigned work.
About SimTech, Inc.
SimTech's mission is to be the most reliable and cost-effective provider of Signature Models, Simulations, Hardware, Software, Cyber solutions, and Test & Evaluation services. Established in 1983 by a team of experienced scientists and engineers, SimTech has a long history of delivering high-technology defense-oriented solutions.
The company has been recognized as a "Best Place to Work" in 2020 and 2021, and as a "Best Place for Working Parents" in 2022-2026 by the Huntsville/Madison County Chamber of Commerce.
SimTech offers an industry-leading comprehensive compensation and benefits package. Be a part of over 43+ years of excellence-join our team today!
To learn more about our exceptional team and employee benefits, contact SimTech HR or visit for more information.
Equal Employment Opportunity and Affirmative Action Employer
SimTech, Inc. is an Equal Opportunity/Affirmative Action Employer. SimTech, Inc. is a committed EOE/Vet/Disabled employer.
Simulation Technologies, Inc. (SimTech) is an Equal Employment Opportunity employer and provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in its job application procedures. If you have any difficulty using our online system and you need an accommodation due to a disability, you may use the following email address, HR@simtechinc.com and/or phone number (256.428.2910) to contact us about your interest in employment with SimTech.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, genetic information, citizenship, ancestry, marital status, protected veteran status, disability status or any other status protected by federal, state, or local law. SimTech participates in E-Verify.