Modeling and Simulation Engineer, Mid-Level

Modeling and Simulation Engineer, Mid-Level

Sim Tech, Inc., recognized as a 2026 Best Place 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.

Sim Tech 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 6

DOF 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.

• 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 6
  
  DOF 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 SIL and 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, seeker, propulsion, and software engineers to validate models against test and flight data.
• Other responsibilities as assigned.

• Bachelor of Science Degree in Aerospace, Electrical, Mechanical, or related engineering field from an accredited institution.
• Demonstrated experience developing 6
  
  DOF 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.

Employees in this position will work primarily in a general office/cubicle setting and laboratory/testing environment using standard office equipment and various electronic testing equipment. Duties include use of computer, telephone, printers, video equipment, computer software, testing equipment, and protective gear such as safety glasses and hearing protection. They may move and test equipment of various weights, work varying shifts and hours, and travel occasionally.

Sim Tech, Inc. is an Equal Opportunity/Affirmative Action Employer. Sim Tech, Inc. is a committed EOE/Vet/Disabled employer. Simulation Technologies, Inc. (Sim Tech) 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,  and/or phone number ) to contact us about your interest in employment with Sim Tech.

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. Sim Tech participates in E-Verify.