Propulsion Technician II, Second Shift

Relativity Space; Long Beach (CA); On-site; USD 39,812 - 51,522; Full time

Benefits offered by this job

Competitive salary and equity

Generous PTO and sick leave policy

Annual learning and development stipend

Job summary

Relativity Space is seeking a Propulsion Technician in Long Beach, California. In this role, you will focus on the assembly and testing of Aeon‑R engine components.

You will gain hands-on experience with various testing processes. A passion for working on engines and excellent communication skills are essential. The position offers competitive salary based on experience and includes a strong benefits package.

Qualifications

• Experience with precision cleaning and hydraulic testing processes.
• Ability to read and interpret engineering drawings.
• Strong interpersonal skills for team collaboration.

Responsibilities

• Assemble and test Aeon‑R engine components and subassemblies.
• Support production processes including cleaning and flow testing.
• Collaborate with team members on manufacturing systems.

Skills

Experience working on engines

Familiarity with Gas Generator cycle engine architecture

High-pressure fluid system development

Electrical and mechanical system integration

Technical communication skills

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 produce high performing products and 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 Technician, 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 be a part of an experienced technical team and build the skills necessary to create and refine robust component and engine building processes. This role will be focused on supporting several in‑house processes and support resources such as precision cleaning, hydrostatic proof testing, flow testing, component assembly and test, and engine assembly.

This is a 2nd shift position with a standard schedule of 3:00 PM‑1:30 AM, Monday through Friday, with a 10% differential on top of the base rate. Please note that this position is structured around a baseline expectation of a 50‑hour work week, which may include occasional overtime as needed to meet operational goals.

About You:

• Experience working on engines, with a primary focus on engine components.
• Familiarity with the architecture of a Gas Generator cycle engine and all associated nomenclature.
• Experience with high‑pressure fluid system development and testing such as hydrostatic proof, pneumatic leak check, and flow testing.
• Familiarity with electrical and mechanical system integration.
• Ability to read and interpret work instructions, and engineering drawings.
• Strong technical and interpersonal, written and verbal communication skills.

Nice to haves but not required:

• Familiarity with 5S manufacturing principles.
• Familiarity with Lean Manufacturing principles.
• 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 and perks we offer, please visit.

Hiring Range: $28.90 — $37.40 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 [e-mail].