GNC Performance Engineer I Verified today

Relativity Space · Long Beach, CA · Space Systems · first seen 2026-10-28

About the Team

The Guidance, Navigation, and Control (GNC) and Performance teams define and analyze how Terran R flies, from liftoff to landing. The work combines advanced modeling, orbital mechanics, software development, and dynamic systems to optimize every phase of flight. You'll be part of the Integrated Performance team, uniting key disciplines to drive performance at every stage of the mission.

About the Role

  • Carry out analysis for engineering design trades and drive design decisions based on the results.
  • Implement, maintain, and improve software tooling in a variety of languages, ranging from core simulation capabilities to peripheral analysis utilities.
  • Maintain, establish, and sometimes lead cross-functional collaboration with key teams across Vehicle Engineering.

About You

  • An undergraduate or graduate degree (BS/MS/PhD) in Engineering, Computer Science, Physics, or a related field.
  • Prior experience doing heavy cross-functional collaboration in a fast-paced environment.
  • Notable modern programming language coding experience (e.g. Python, Julia, Rust, C++).
  • Demonstrated experience in taking complex analysis results and clearly communicating conclusions and recommendations to facilitate rapid decision-making.
  • Familiarity with architectural design and analysis of launch vehicle or space systems.
  • Familiarity with trajectory design and optimization.

Nice to Have

  • Experience working with advanced software development practices such as Docker, Continuous Integration/Continuous Deployment (CI/CD), and dependency management.
  • Prior work in a startup or agile development environment.

Compensation

Hiring range: $106,000-$160,000 USD. Compensation is determined based on experience, qualifications, and job-related factors. Relativity Space offers competitive salary and equity, generous PTO and sick leave, parental leave, annual learning and development stipend, and additional benefits.