Simulation Engineer

About the Company

Apex manufactures satellite buses at scale using a combination of software, vertical integration, and hardware designed for manufacturing. The company aims to provide humankind access to the galaxy beyond our planet through commercial spacecraft platforms.

Responsibilities

• Own closed-loop spacecraft simulation platforms from initial design to deployment
• Develop and maintain core simulation capabilities such as scheduling, data routing, diagnostics, and Monte Carlo capabilities
• Develop and maintain simulation models, emulators, and hardware/software interfaces
• Collaborate with cross-functional teams to define test requirements and execute tests
• Analyze test data and generate insights for model improvements
• Develop tools to automate simulation workflows and produce test reports
• Debug complex closed-loop interactions between units under test and simulation

Requirements

• U.S. Person status required
• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, or related field
• 3+ years of experience developing closed-loop simulation tools (6DOF, SITL, PITL, HITL)
• Proficiency in C/C++, Rust, or Python
• Experience operating and developing within Linux environments
• Familiarity with Docker, CI/CD pipelines, and agile development
• Experience designing and validating physics-based simulation models
• Experience emulating virtual sensors, actuators, and test equipment

Preferred Qualifications

• Experience in the aerospace or satellite industry
• Knowledge of satellite subsystems (sensors, actuators, controls, communications, power)
• Experience with real-time or HPC systems
• Knowledge of embedded Linux or real-time operating systems