GNC Simulation Engineer – 6DOF & HITL Specialist

Relativity Space, Inc.; Long Beach (CA); On-site; USD 110,000 - 164,000; Full time

Benefits offered by this job

Equity

PTO & sick leave

Parental leave

Learning stipend

Job summary

Relativity Space is building rockets and software for Terran R, with a team that blends propulsion, manufacturing, software, avionics, and corporate functions. You will own critical pieces of the simulation stack, from physics models to Monte Carlo capabilities, contributing to a fast-moving startup environment where ownership and impact matter.

You will collaborate across teams to deliver reliable flight algorithms and interfaces with GNC, shaping the next generation of space systems and

Qualifications

• An undergraduate or graduate degree (BS/MS/PhD) in engineering, physics, mathematics or related disciplines.
• Proficiency with compiled (e.g. C++, Rust) and scripted (e.g. Python) languages.
• Experience developing physics-based simulations.
• Relevant student team, research, internship, or full-time experience.
• Ability to work in a fast paced and intense startup environment.
• Ability to complete projects with ownership of end-to-end solutions with a high degree of independence.

Responsibilities

• Be a key contributor to the 6DOF simulation used for GNC algorithm development, Monte Carlo analysis, and HITL testing.
• Work with analysis and hardware teams to develop and integrate subsystem models into the 6DOF simulation.
• Implement numerical solvers and physics models.
• Develop simulation configuration, scheduling, logging, and Monte Carlo capabilities.
• Develop simulation interfaces with GNC algorithms.
• Maintain and improve the development environment for simulation users.
• Contribute to other cross-functional software packages at Relativity.

Skills

C++

Rust

Python

Education

BS/MS/PhD in engineering, physics, mathematics or related disciplines

Job description

Relativity Space is building rockets and software for Terran R, with a team that blends propulsion, manufacturing, software, avionics, and corporate functions. You will own critical pieces of the simulation stack, from physics models to Monte Carlo capabilities, contributing to a fast-moving startup environment where ownership and impact matter.

You will collaborate across teams to deliver reliable flight algorithms and interfaces with GNC, shaping the next generation of space systems and