Senior GNC Engineer - Modeling & Simulation Lead

Mach Industries; Huntington Beach (CA); On-site; USD 180,000 - 210,000; Full time

Job summary

Mach Industries is seeking a Senior GNC Engineer - Modeling and Simulation to own vehicle models and simulation environments for autonomous aircraft and defense platforms. The role emphasizes physics-based modeling, Monte Carlo analyses, and data-driven validation against flight‑test results.

The ideal candidate combines strong flight‑dynamics fundamentals with software engineering, data analysis, and practical testing experience; collaboration with senior technical leaders is essential.

Qualifications

• Bachelor’s degree in a technical field (aerospace, mechanical, electrical, physics, math, CS) required.
• 5+ years developing physics-based simulations or validated dynamic models.
• Strong knowledge of flight mechanics, reference frames, and numerical integration.
• Experience with six-DOF simulations and integrated multi-domain models.
• Proficient in C/C++ or Rust and MATLAB/Simulink; ability to build LOF/HIL workflows.
• Fluency with Git, CI, code review, and configuration management.

Responsibilities

• Own the design, development, validation, and use of simulation capabilities.
• Translate questions into simulation requirements, fidelity, interfaces, and metrics.
• Balance fidelity, run time, and maintainability for fast decision‑making.
• Implement equations of motion and sensors in real-time or faster‑than‑real time.
• Document model assumptions, data sources, and validation evidence.
• Lead comparisons of simulation with flight‑test data and improve models.
• Collaborate with multi‑disciplinary teams to define needs and interfaces.
• Develop and support SIL/HIL environments and automated regression tests.

Skills

Flight dynamics

Rigid-body dynamics

Numerical integration

Uncertainty modeling

Monte Carlo analysis

Modeling & simulation

C/C++

Rust

MATLAB/Simulink

Statistical analysis

Education

Bachelor's degree in aerospace engineering or related field

Master's degree preferred

Tools

JSBSim

PX4

Simscape

Git

CI

Simulink

Job description

Mach Industries is seeking a Senior GNC Engineer - Modeling and Simulation to own vehicle models and simulation environments for autonomous aircraft and defense platforms. The role emphasizes physics-based modeling, Monte Carlo analyses, and data-driven validation against flight‑test results.

The ideal candidate combines strong flight‑dynamics fundamentals with software engineering, data analysis, and practical testing experience; collaboration with senior technical leaders is essential.