Guidance & Trajectory Simulation Engineer II

Relativity Space; Long Beach (CA); On-site; USD 126,000 - 188,000; Full time

Benefits offered by this job

PTO & Sick Leave

Parental Leave

Learning and Development Stipend

Equity

Job summary

Relativity Space is building the Terran R program and seeks engineers to advance integrated performance across vehicle and ground systems. You’ll work on simulations, analytics, and cross-disciplinary collaboration to drive programmatic improvements.

This role spans design data integration, trajectory optimization, and end-to-end ownership in a fast-moving startup environment. You will collaborate with propulsion, manufacturing, software, and avionics teams, developing and maintaining simulation

Qualifications

• BS/MS/PhD in Engineering, Computer Science, Physics, or related field.
• 1+ years of full-time work experience with strong problem-solving from first principles.
• Direct experience on rocketry, space systems, or similarly complex hardware.
• Proficiency in Python, Julia, MATLAB and setting up complex simulations.
• Experience with Docker, CI/CD, and dependency management is a plus.

Responsibilities

• Collaborate with design teams to integrate the latest design data into full simulations of customer missions.
• Develop tooling to optimize launch trajectories and orbital paths across missions.
• Lead design trade analyses for decisions about vehicle, trajectories, and ConOps.
• Define and maintain high-level vehicle and trajectory design requirements for the design process.
• Implement and improve software tooling across languages for simulations and analyses.
• Establish and lead cross-functional collaboration with Vehicle Engineering teams.

Skills

Python

Julia

MATLAB

Simulation

Education

BS/MS/PhD in Engineering/CS/Physics

Tools

Docker

CI/CD

Dependency Management

Job description

Relativity Space is building the Terran R program and seeks engineers to advance integrated performance across vehicle and ground systems. You’ll work on simulations, analytics, and cross-disciplinary collaboration to drive programmatic improvements.

This role spans design data integration, trajectory optimization, and end-to-end ownership in a fast-moving startup environment. You will collaborate with propulsion, manufacturing, software, and avionics teams, developing and maintaining simulation