GNC Engineer I

At Relativity Space were building rockets to serve todays needs and tomorrows breakthroughs. OurTerran R vehicle will deliver customer payloads to orbit meeting the growing demand for launchcapacity. But thats just the start. Achieving commercial success with Terran R will unlock newopportunities to advance science exploration and innovation pioneering progress that reaches beyondthe known.

Joining Relativity means becoming part of something where autonomy ownership and impact exist at every level. Here youre not just executing tasks; youre solving problems that havent been solved before helping develop a rocket a factory and a business from the ground up. Whether youre in propulsion manufacturing software avionics or a corporate function youll 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 were writing together. Nowis a unique moment in time where its early enough to leave your mark on the product the process andthe culture but far enough along that Terran R is tangible and picking up momentum. The mostmeaningful work of your career is waiting. Join us.

About the 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. Youll develop flight algorithms simulate trajectories and model Terran Rs dynamic behavior across mission profiles. Whether youre early in your career or a seasoned expert youll 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.

About the Role:

• Own GNC algorithms from conception through design analysis and onboard implementation
• Develop 6DoF simulation truth models for GNC analysis and validation
• Comprehensively test GNC software from the algorithm unit level to Monte Carlo analysis to fully integrated hardware-in-the-loop systems
• Support test and launch operations from pre-flight preparation through post-flight data review and model correlation

About You:

• An undergraduate or graduate degree (BS/MS/PhD) in Engineering Computer Science Physics or related field
• Technical fundamentals on the Flight Computer side (guidance navigation controls) and Truth Model side (dynamics modeling simulation)
• 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
• Proficiency in the following programming languages: C and Python

Nice to haves but not required:

• Demonstrated project experience in launch vehicle and/or spacecraft system
• Excellent communication skills
• Proficiency in the following programming language: Rust

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 .