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Supervisor, Propulsion Technicians

Relativity

Long Beach, California (Long Beach (CA)) permanent

Posted: March 30, 2026

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Quick Summary

Supervisor, Propulsion Technicians in Long Beach, California. This role involves overseeing the development and launch of rockets, working closely with engineers and technicians to ensure timely delivery of customer payloads to orbit. The ideal candidate should have experience in propulsion systems and be able to troubleshoot complex technical issues.

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 engine manufacturing department's mission is to product high performing products & manufacturing systems by continuously innovating on cost, quality, and lead time. Through cross-functional collaboration, high levels of accountability, and a focus on safety we support the Terran R program. We are responsible for providing design feedback on new hardware iterations, developing new manufacturing methods and systems, and ultimately building engine and vehicle hardware for testing prior to our first launch. Our team's highlights from the last 6 months include the MDC of the first Aeon-R engine, completing thousands of hours of PBF printing, building and testing over 50 valves of 26 different iterations, and implementing large scale process improvements along the way.

About the Role:

As a Propulsion Supervisor, you will be on the front line of the assembly and testing of the Aeon-R engine components, sub-assemblies and engines. This is a unique opportunity to lead an experienced technical team and build the skills necessary to create and refine robust component and engine building processes. You will be building a team of strong leaders and individual contributors alike. You will also be accountable to organizational production goals and ensuring the continuous improvement of the production system. This role will be focused on leading team members through several in-house processes and support resources such as precision cleaning, hydrostatic proof testing, flow testing, component assembly and test, and engine assembly.

About You:

• 5+ years experience working on engines, with a primary focus on engine component builds.

• 5+ years familiarity with electrical and mechanical system integration.

• 3+ years experience leading high performing teams.

• 3+ years experience identifying manufacturing process gaps and analyzing their impact on the production system.

• 3+ years experience administrating/delegating daily work assignments to your team.

• 3+ years experience maintaining work centers in accordance with company & manufacturing best practices.

Nice to haves but not required:

• 3+ years familiarity with 5S manufacturing principles.

• 3+ years familiarity with Lean Manufacturing principles.

• 3+ years experience transitioning from development into high-volume production

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:
$118,000—$163,000 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.

If you need a reasonable accommodation, please contact us at [email protected].

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