Fluids Analyst II, Combustion Devices

Telemetry Today LLC; Long Beach (CA); On-site; USD 104,000 - 156,000; Full time

Benefits offered by this job

Equity options

Generous PTO and sick leave

Parental leave

Annual learning stipend

Job summary

Relativity Space is seeking a CFD analyst to contribute to the design and qualification of combustion devices hardware (injectors, thrust chamber, heat exchangers) through Computational Fluid Dynamics Analysis. You will review test and flight data to anchor models and interface with hardware designers.

The role emphasizes developing and recommending analysis approaches that reduce design iteration time, with a strong commitment to accountability, collaboration, and execution across teams as

Qualifications

• 2+ years of experience performing computation fluid dynamics analyses.
• Familiar with pre/post-processing, meshing, boundary conditions, and standard CFD workflows.
• Experience with basic engineering scripting in Python, MATLAB, or similar.
• Strong background in fluid mechanics and heat transfer.
• Bachelor's degree in a science or engineering field.

Responsibilities

• Contribute to design and qualification of combustion devices hardware through Computational Fluid Dynamics Analysis.
• Review test and flight data to evaluate and anchor CFD models.
• Interface with hardware designers to influence design decisions using thermofluid insights.
• Develop and recommend analysis approaches that may decrease design iteration time.
• Demonstrate accountability, collaboration, and execution across the propulsion team.

Skills

CFD analyses experience

Engineering scripting (Python, MATLAB)

Fluid mechanics and heat transfer

Reviewing test/flight data

Education

Bachelor's degree in science or engineering

Tools

Siemens STAR-CCM+

Job description

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 Propulsion team at Relativity is focused on developing and delivering highly performant and manufacturable engines for Terran R. Engineers are responsible for the entire lifecycle of their parts, from initial design through production to qualification and flight. The team fosters a culture of bottoms-up decision-making, free from technical gatekeeping, where ownership and accountability are key at all levels. But designing engines with a quarter million pounds of thrust is just the beginning. As the flight configuration enters qualification, the team is now exploring modifications for future engines, including thrust upgrades, new cycles, and design for mass production.

About the role:

• Contribute to design and qualification of combustion devices hardware (injectors, thrust chamber, heat exchangers, igniters) through Computational Fluid Dynamics Analysis
• Review test and flight data as necessary to evaluate and anchor models
• Interface with hardware designers and utilize thermofluid expertise to influence design decisions
• Develop and recommend analysis approaches that may decrease design iteration time
• A strong commitment to accountability, collaboration, and execution

About you:

• Bachelor's degree in a science or engineering field
• 2+ years of experience in performing computation fluid dynamics analyses (employment, internships, project experience)
• Familiar with typical analysis steps including pre/post-processing, meshing, boundary conditions, etc.
• Experience with basic engineering scripting in Python, MATLAB, or similar
• Strong background in fluid mechanics and heat transfer

Nice to haves, but not required:

• We believe varied perspectives & backgrounds strengthen our team. Prior experience in aerospace is not required
• Graduate degree in a science or engineering field
• Experience in Siemens STAR-CCM+
• Working knowledge of rocket engine subsystems, such as combustion devices

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:

$104,000 — $156,000 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.