Vehicle Fluids Hardware Development Engineer I

Relativity Space; Long Beach (CA); On-site; USD 90,000 - 136,000; Full time

Benefits offered by this job

Equity

PTO & sick leave

Parental leave

Learning stipend

Job summary

Relativity Space seeks a Vehicle Fluids Hardware Development Engineer I in Long Beach, CA to design and implement hardware for Terran R fluid systems, collaborating with design, manufacturing, and propulsion teams to deliver reliable, high-performance components.

You will help develop manufacturing processes, lead DFMs, design test setups, and coordinate development and qualification testing, all while engaging closely with production teams for rapid iteration on the factory floor.

Qualifications

• Bachelor’s degree in science/engineering/technology/math required.
• Hands-on hardware experience with fluid and/or mechanical systems.
• Ability to deliver on ambitious schedules; creative solutions may be required.
• 1+ year of related full-time experience, internships, or projects.
• Available to start full-time within 30–60 days of applying.

Responsibilities

• Develop manufacturing processes for high-rate production and improved engine performance.
• Collaborate with design and analysis to simplify propulsion systems.
• Lead design for manufacturing (DFM) initiatives and participate in design reviews.
• Design test setups and coordinate/execute development, qualification, and acceptance testing; conduct data reviews.
• Participate in test failure investigations and implement corrective actions.
• Design, analyze, and procure tooling for part manufacturing and system testing.
• Create and maintain development build and test schedules.

Skills

Hands-on hardware experience with flu

Education

Bachelor’s degree in science/engineering/technology/mathematics

Job description

Vehicle Fluids Hardware Development Engineer I

Long Beach, California, United States

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. OurTerran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launchcapacity. But that’s 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, 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. Nowis a unique moment in time where it’s 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 Stage Fluids team is responsible for the design and delivery of propellant, pressurant, pneumatics, and other fluid systems that turn structures into functioning rockets! The team has full ownership across design, production, test, and flight, maintaining a holistic view of Terran R, focused not on isolated parts but integrated functionality. Working on-site at the factory means you’re never far from the hardware, enabling rapid iteration and tight feedback loops across design and manufacturing. You won’t just be handed requirements: you’ll be expected to ask the right questions, collaborate with partners across the company, and ultimately find the best solutions for Terran R.

About the Role:

In this role, you will be responsible for the hardware design and implementation of that hardware into vehicle fluid systems, ensuring a reliable and efficient operation of our Terran R launch vehicle. Your primary tasks will be focused on:

Vehicle Fluids Hardware Development Engineers are responsible for taking the vehicle hardware from paper designs to highly reliable, high-performance hardware. This role requires deep engagement with both the design and production teams to ensure our designs are readily manufacturable, and our manufacturing processes are reliable and production ready. You will also be responsible for developing new manufacturing processes to improve the Terran-R vehicle. You should have strong engineering fundamentals as well as a knowledge of aerospace manufacturing techniques to be an effective Hardware Development Engineer. The role demands close interaction with propulsion hardware, including defining build procedures and hands‑on build and integration of hardware.

Responsibilities:

• Develop manufacturing processes, new techniques, and tools to enable high-rate productions and increase engine performance
• Work hand-in-hand with the design and analysis teams to simplify our propulsion systems
• Participate in design reviews and lead design for manufacturing (DFM) initiatives
• Design test set-ups, coordinate and execute development, qualification, and acceptance testing of systems, and conduct data reviews
• Participate in test failure investigations and implement corrective actions
• Design, analyze, and procure tooling for piece part manufacturing and system testing
• Create and maintain development build and test schedules

About You:

• Bachelor’s degree in a science, engineering, technology, or mathematics field
• Hands-on hardware experience with fluid and/or mechanical systems
• Demonstrated drive to deliver on ambitious schedules, especially if unconventional & creative solutions are necessary to do so
• 1+ years of related experience (full time, internships or projects)
• Hiring Timeline:We are actively hiring for immediate openings. Candidates should have completed their degree requirements and be available to begin full-time employment within30-60 days of applying. If your availability falls outside this window, we encourage you to return and apply when you are within30-60 days of being available to start full-time employment.

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:

$90,000 - $136,000 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.

Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.