Senior Modeling & Simulation Engineer (Aerospace)

Location: Gardena, California, United States

Salary: $175,000–$230,000 per year, plus equity and benefits

Company

hirify.global is a stealth-mode aerospace and defense startup developing systems supported by a team with experience from SpaceX, Anduril, and Lockheed Martin.

What you will do

• Lead the development of high-fidelity, physics-based simulations for end-to-end missile flight and guidance validation.
• Design high-performance six-degree-of-freedom flight and physics simulations.
• Build simulation components that reproduce real-world dynamics and sensor behavior.
• Integrate guidance, navigation, and control logic into full-stack simulations.
• Develop Monte Carlo, Hardware-in-the-Loop, and closed-loop test infrastructure.
• Create scenario-authoring, data-visualization, and performance-analysis tools while maintaining pipeline performance and determinism.

Requirements

• Bachelor’s degree in Computer Science or a related technical field.
• 7+ years of experience building simulations or numerical modeling frameworks.
• Proficiency in Rust and Python for performance-critical and test-driven development.
• Understanding of rigid-body dynamics, kinematics, numerical integration, and physics.
• Experience building tools for flight dynamics, aerospace simulation, or autonomous systems.
• Must be a U.S. citizen or national, lawful permanent resident, refugee, or asylee, or be eligible to obtain the required U.S. Department of State authorizations under ITAR.

Nice to have

• Experience with Monte Carlo testing, sensor emulation, and closed-loop control validation.
• Familiarity with real-time systems, latency-sensitive architectures, or distributed simulation.
• Experience deploying or validating autonomous systems such as missiles, drones, satellites, or vehicles.
• Familiarity with Rust game engines or physics libraries such as Rapier and Bevy.
• Exposure to 3D rendering or contributions to aerospace open-source and simulation frameworks.

Culture & Benefits

• Work on aerospace and defense systems that require reliable first-time performance.
• Collaborate with flight software, autonomy, and hardware teams.
• Healthcare, vision, dental, 401(k), and lunch benefits.
• Equity compensation.