relativity

GNC Simulation Engineer II

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At a Glance

Location
Long Beach, California, United States
Posted
2026-05-22T13:47:18-04:00

Key Requirements

Required Skills

DockerPythonRust

Domain Knowledge

  • Aerospace
  • Engineering

Requirements

C++, Rust) and scripted (e.g.

Experience developing physics-based simulations of aerospace vehicles

Familiarity with the design and analysis of launch vehicles or space systems

Experience developing aerospace vehicle simulations that interface with GNC algorithms and/or hardware-in-the-loop (HITL) testing

Experience implementing high-performance computing (HPC) solutions

Experience implementing software development practices and workflows such as Docker, continuous integration (CI), and continuous deployment (CD)

Compensation & Benefits

$126,000

$172,500 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at

accommodations@relativityspace.com

Responsibilities

You will be a key contributor to the 6DOF simulation used for GNC algorithm development, Monte Carlo analysis, and hardware-in-the-loop (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

Team

The Guidance, Navigation, and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies, from liftoff to landing. The work combines a variety of disciplines such as advanced modeling, orbital mechanics, software development, and dynamic systems to optimize every phase of flight. You’ll develop flight algorithms, simulate trajectories, and model Terran R’s dynamic behavior across mission profiles. Whether you're early in your career or a seasoned expert, you’ll have the opportunity to own critical pieces of the system, influence design, and see your work fly. The department is part of the Integrated Performance team, uniting key disciplines to drive performance at every stage of the mission.