Senior GNC Simulation Engineer (Aerospace)

Location: Long Beach, California, United States

Salary: $148,000–$222,000 USD per year

Company

hirify.global develops launch vehicles, including the Terran R rocket, to deliver customer payloads to orbit.

What you will do

• Contribute to the 6DOF simulation used for GNC algorithm development, Monte Carlo analysis, and hardware-in-the-loop testing.
• Develop and integrate subsystem models with analysis and hardware teams.
• Implement numerical solvers and physics-based models for aerospace vehicles.
• Build simulation configuration, scheduling, logging, and Monte Carlo capabilities.
• Develop interfaces between the simulation and GNC algorithms.
• Maintain the simulation development environment and contribute to cross-functional software packages.

Requirements

• Bachelor’s, master’s, or doctoral degree in engineering, physics, mathematics, or a related discipline.
• 5+ years of relevant full-time work experience.
• Proficiency with compiled languages such as C++ or Rust and scripted languages such as Python.
• Experience developing physics-based simulations of aerospace vehicles.
• Ability to work in a fast-paced, intense startup environment.
• Ability to own end-to-end solutions and complete projects independently.

Nice to have

• Experience with launch vehicle or space systems design and analysis.
• Experience developing aerospace simulations interfacing with GNC algorithms or hardware-in-the-loop testing.
• Experience implementing high-performance computing solutions.
• Experience with Docker, continuous integration, and continuous deployment workflows.

Culture & Benefits

• Work across propulsion, manufacturing, software, avionics, and corporate functions.
• Autonomy, ownership, and end-to-end responsibility for impactful engineering work.
• Competitive salary and equity.
• Paid time off, sick leave, and parental leave.
• Annual learning and development stipend.