Fluids Analyst II, Combustion Devices

· Remote

Location

Remote

Type

Full Time

Job Description

Fluids Analyst II Combustion Devices

Posted 6 Hours Ago
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Long Beach CA USA
In-Office
104K-143K Annually
Junior
Aerospace • Hardware • Robotics • Software • Manufacturing
Building reusable rockets to empower science and exploration.
The Role
The role involves contributing to design and qualification of combustion devices performing computational fluid dynamics analyses reviewing data and interfacing with designers to influence decisions.
Summary Generated by Built In

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 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 increase 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:
$104000$143000 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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The Company
HQ: Long Beach CA
2200 Employees
Year Founded: 2016

What We Do

Relativity Space is on a mission to better connect humanity to space and the universe beyond our planet. Our medium-to-heavy lift reusable rocket Terran R 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.

Why Work With Us

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.

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Relativity Space Offices

OnSite Workspace

At Relativity Space we are an office-first company. We believe our best work happens in person—where collaboration is faster problem-solving is sharper and ideas flow more freely.

Typical time on-site: None
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HQThe Wormhole
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Launch Complex 16
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NASA Stennis Space Center
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Kent WA
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Washington DC
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Date Posted

04/28/2026

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