Modeling & Simulation Engineer
About the Company: We are a stealth-mode Aerospace & Defense startup headquartered in Gardena, CA. Our founding team hails from SpaceX, Anduril, and Lockheed Martin, and we are backed by Joint Staff-level military leadership and several Silicon Valley firms. With a world-class business development & leadership team already in place, we are well positioned to capitalize on already overwhelming demand.Job Overview:As a GNC Engineer focused on Simulations, you will lead the development of high-fidelity physics-based simulations for end-to-end missile flight and guidance validation. These simulations serve as a digital proving ground for our flight software, autonomy stack, and control systems-enabling us to iterate rapidly and validate in silico what would otherwise require expensive, slow, or impossible real-world testing.You'll own simulation architecture, real-time physics integration, and testbed development. If you're comfortable writing performant simulation code in Rust and Python, and you're looking to do impactful work on a system that must work the first time, this is your chance.Key Responsibilities:Design high-performance 6-DOF flight and physics simulationsBuild simulation components that replicate real-world dynamics and sensor behaviorIntegrate guidance, navigation, and control (GNC) logic into full-stack simulationsDevelop Monte Carlo, Hardware-in-the-Loop (HITL), and closed-loop test infrastructureCollaborate closely with flight software, autonomy, and hardware teams to ensure simulation fidelity matches real-world constraintsCreate tooling to support scenario authoring, data visualization, and performance analysisOwn simulation pipeline performance and determinism across a wide range of conditionsBasic Qualifications:Bachelor's degree in Computer Science or a related technical field5+ years of experience building simulations or numerical modeling frameworksProficient in Rust and Python for performance-critical and test-driven developmentUnderstanding of rigid body dynamics, kinematics, numerical integration, and physicsExperience building tools for flight dynamics, aerospace simulation, or autonomous systemsPreferred Qualifications:Experience with Monte Carlo testing, sensor emulation, and closed-loop control validationFamiliarity with real-time systems, latency-sensitive architectures, or distributed simulationExperience deploying or validating autonomous systems (missiles, drones, satellites, or vehicles)Familiarity with Rust game engines or physics libraries (e.g., Rapier, Bevy)Exposure to 3D rendering for simulation visualization (e.g., WebGL, OpenGL, Three.js)Contributions to aerospace open source or simulation frameworks (e.g., JSBSim, Gazebo)Itar RequirementsTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C.1157, or (iv) Asylee under 8 U.S.C.1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.