Software Engineer I,II,III: Simulations

About this role

Lodestar seeks Software Engineers to build high-fidelity simulation environments for autonomous spacecraft defense systems. You'll develop sensor and environment models in Unreal Engine, create software/hardware-in-the-loop test benches, and design distributed simulation services that validate the MITHRIL autonomy stack.

What you'll do

• Build and extend mission simulation environments for autonomy stack development and validation
• Develop high-fidelity sensor and environment models including electro-optical cameras and orbital lighting
• Create software-in-the-loop and hardware-in-the-loop test benches for flight software validation
• Design distributed simulation services to run mission scenarios at scale across machines
• Own internal simulation tooling, telemetry frameworks, and regression testing infrastructure
• Collaborate with perception, prediction, decision, and missions teams on simulation requirements

What they're looking for

• C++ (modern standards C++17+)
• Python
• ROS 2 (node design, DDS middleware, message passing)
• Unreal Engine or equivalent 3D simulation tools
• Software-in-the-loop and hardware-in-the-loop testing
• Multithreaded and concurrent programming
• Distributed systems design and inter-process communication
• Linux and Docker containerization