Relativity Space

Aerospace

SeniorGNCPerformanceEngineer

$148–204k Long Beach, California, United States FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior GNC Performance Engineer at Relativity Space. Skills: GNC Performance, Trajectory design, System simulation. Integrate design data into simulations. Develop software tooling”

Industry & Context.

Aerospace
Problems you'll solve

Solve complex problems

What They're Looking For.

Must Have

2+ years relevant work experience, Degree in Engineering, Computer Science, Physics, or related field, Direct experience on rocketry, space systems, or complex hardware

Nice to Have

Familiarity with launch vehicle trajectory design, Leading contributor on complex multi-disciplinary engineering analysis projects, Prior work in a startup environment, Experience with advanced software development practices, Experience with Docker, Experience with CI/CD, Experience with dependency management

What You'll Do.

Integrate design data into simulations

Develop software tooling

Optimize launch trajectories

Optimize orbital trajectories

Lead interdisciplinary design trade analyses

Inform critical decisions

Define vehicle design requirements

Define trajectory design requirements

Maintain vehicle design requirements

Maintain trajectory design requirements

Implement software tooling

Maintain software tooling

Improve software tooling

Establish cross-functional collaboration

Lead cross-functional collaboration

How You'll Work.

Team & Collaboration

Key design teams; Partner teams; Cross-functional collaboration

Full Job Description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us. About the Team: The Integrated Performance team owns the holistic view of how Terran R comes together, ensuring that every system on the vehicle and ground is capable of achieving our ambitious objectives. The team works across the full launch system, from trajectory design and aerodynamics to reliability analysis and beyond, with direct influence on all parts of the product lifecycle, from conceptual design to post-flight data review. Beyond analysis, team members engage hands-on with hardware and operations, with the mission and authority to drive meaningful programmatic change. With a unique organizational structure, the integrated performance team spans multiple technical domains and embeds directly with partner tea

Free ATS check

Applying for this Senior GNC Performance Engineer role?

Most applicants get filtered before a human reads their resume. See if yours makes the cut.

How to Apply on Greenhouse

  • Create a Greenhouse profile before applying — it saves time across multiple applications.
  • Upload your resume as a PDF; the parser handles it better than Word.
  • Answer all knockout questions carefully — wrong answers auto-reject before a human sees you.
  • Enable email notifications to track application status in real time.

ANONYMOUS · UNFILTERED

What do employees actually say about Relativity Space?

Real rants from real employees. Read before you apply.

Read Company Rants →