Lead Propulsion Engineer, Integrated Design Long , California

Lead Propulsion Engineer, Integrated Design

Long Beach, California

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. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. You’ll solve problems that haven’t been solved before, help develop a rocket, a factory, and a business from the ground up. Collaboration across teams, shaping decisions, and seeing your work come to life in record time is expected.

The Propulsion team focuses on developing and delivering highly performant and manufacturable engines for Terran R. Engineers handle the entire lifecycle of their parts, from design through production to qualification and flight. The team emphasizes bottom‑up decision‑making, ownership, and accountability.

You will lead a team responsible for the design and analysis of integration hardware, overall engine layout, and packaging. The role requires managing a small team, strong mentorship, project management, prioritization, communication with leadership, technical guidance, and recruiting. Collaboration with stakeholders in Propulsion Engineering and external teams is essential. Designs and packaging trades will be informed by fluid and structural analysis and computational models.

Strategic use of 3D printing and traditional manufacturing methods will reduce cost, weight, and part count of Aeon‑R. Thrive in ambiguity and lead projects to completion.

• Bachelor’s degree in a science, engineering, technology, or mathematics field
• 5+ years of experience with fluid systems design and/or structural design
• Experience in mentoring and demonstrated leadership skills
• Experience with computer‑aided design software
• Experience with Finite Element Analysis (FEA) and commercial tools such as Ansys, Abaqus, or Nastran
• Experience applying fluid, thermal, structural, and mechanical design fundamentals

• Experience leading teams
• Experience designing liquid propulsion components and systems
• Experience with Siemens NX and Teamcenter
• Experience with large CAD model management, change management, and configuration management
• Familiarity with aerospace standards (AS, NAS, SAE, etc.)

Compensation will be based on experience, qualifications, and other factors. Hiring range: $136,000 - $187,000 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.