Simulation Engineer I: Flight Software & SIL/HIL Testing

Inversion Space Company; California; On-site; USD 71,000 - 124,000; Full time

Job summary

Inversion is seeking a Simulation Engineer to develop, automate, and maintain simulation and testing environments for flight software and hardware. You will bridge GNC, Software, and Simulation teams, translating MATLAB-based GNC into autocoded C/C++ flight code and enabling fast, repeatable verification in SIL/HIL setups.

You will work under senior engineers to build tools, validate subsystems, and ensure robust simulation workflows across HPC and testbeds, contributing to national security

Qualifications

• Bachelor’s degree in Computer Science , Computer Engineering, Aerospace Engineering, Mechanical Engineering, or equivalent technical experience.
• Typically 1+ years of internship, academic research, or professional experience developing software, physics-based simulations, or numerical models.
• Proficiency in programming languages such as C++ or Python in a Linux environment.
• Strong foundational understanding of physics, classical mechanics, dynamics, and numerical analysis.
• Familiarity with standard software development practices, including version control (Git).
• Excellent verbal and written communication skills with a strong motivation to learn and take on technical ownership of complex codebases.
• Must have the ability to obtain and maintain a U.S. government Secret/Top Secret security clearance.

Responsibilities

• Develop, test, and maintain simulation models for spacecraft subsystems, environmental dynamics, and hardware interfaces.
• Support the execution, automation, and scaling of Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) testing runs.
• Write and optimize data-processing pipelines and visualization scripts to analyze simulation outputs and verify vehicle-level requirements.
• Integrate internal guidance, navigation, and control (GNC) algorithms, aerodynamic databases, and sensor models into the core simulation platform.
• Develop and run automated unit tests, integration tests, and regression suites to ensure simulation platform stability.
• Maintain and troubleshoot simulation backend infrastructure, high-performance computing (HPC) nodes, and physical testbeds.
• Document simulation setups, API interfaces, and user guides to empower product engineering teams to run self-service simulation workflows.

Skills

C++

Python

Git

Linux

Communication

Education

Bachelor’s degree in CS/CE/AE/ME or equivalent

Tools

MATLAB/Simulink

ROS/ROS2

Docker

CI/CD

Job description

Inversion is seeking a Simulation Engineer to develop, automate, and maintain simulation and testing environments for flight software and hardware. You will bridge GNC, Software, and Simulation teams, translating MATLAB-based GNC into autocoded C/C++ flight code and enabling fast, repeatable verification in SIL/HIL setups.

You will work under senior engineers to build tools, validate subsystems, and ensure robust simulation workflows across HPC and testbeds, contributing to national security