Spacecraft Simulation & Modeling Engineer (Real-Time & HWIL)

Intuitive Machines, LLC; Houston (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Intuitive Machines is seeking a Simulation and Modeling Software Developer in Houston, TX to develop and maintain high-fidelity simulation tools supporting multiple internal and external customers. The role collaborates with propulsion, GNC, and subsystems engineers to build robust models for real-time and HWIL environments.

The candidate should have a strong background in C/C++, Python, and 6-DoF simulations, with experience in spacecraft dynamics, sensors, and Agile processes.

Qualifications

• BS or MS in Aerospace Engineering, Physics, or related field with 5+ years of experience preferred.
• C, C++, and Python programming experience.
• 6-degrees-of-freedom simulation development experience.
• Experience in spacecraft dynamics, thermal modeling, power modeling, RF comm modeling, sensor modeling (IMUs, star trackers, LIDAR, etc).
• Experience with Agile software development tools and processes.
• Experience with Atlassian tools, Git version control, Gitlab, Docker, and Linux is preferred.

Responsibilities

• Design, implement, test, and own environmental, vehicle and I/O simulation models.
• Collaborate with vehicle software, GNC, and other subsystem engineers and subject matter experts in creating high-fidelity environment, sensor, effector, and interface models.
• Create and execute simulation model verification tests.
• Faster-than-real-time and real-time spacecraft simulation development and maintenance.
• Hardware-in-the-loop (HWIL) simulation development and testing.
• Support Fault, Detection, Isolation, and Recovery (FDIR) testing through fault modeling.
• Write model unit tests and coordinate high-level testing of implemented models.
• Develop and maintain Software Quality Assurance (SQA) tools.
• Provide simulation support to flight software, ground software, and operations teams.

Skills

C programming

C++

Python

6-DoF simulation

Spacecraft dynamics

GNC software integration

Education

BS/MS in Aerospace Engineering or Physics

Tools

Git

GitLab

Docker

Linux

Atlassian tools

Job description

Intuitive Machines is seeking a Simulation and Modeling Software Developer in Houston, TX to develop and maintain high-fidelity simulation tools supporting multiple internal and external customers. The role collaborates with propulsion, GNC, and subsystems engineers to build robust models for real-time and HWIL environments.

The candidate should have a strong background in C/C++, Python, and 6-DoF simulations, with experience in spacecraft dynamics, sensors, and Agile processes.