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Fluids Engineer Jobs (NOW HIRING)

Blue Origin

Thermal & Fluids Engineer III

Seattle, WA · On-site

$110K - $155K/yr

As part of a small, passionate and accomplished team of engineers and analysts, you will support all aspects of thermal and fluid system design for various New Glenn spaceflight systems. You will ...

Fermilab

Thermal-Fluids Mechanical Engineer

Batavia, NY · On-site

$88K - $116K/yr

What your day-to-day as a Thermal Fluids Mechanical Engineer at Fermilab will look like: * Utilize fundamental mechanical engineering concepts and principles to complete assignments and develop ...

Fermilab

Thermal-Fluids Mechanical Engineer

Batavia, IL · On-site

$88K - $116K/yr

What your day-to-day as a Thermal Fluids Mechanical Engineer at Fermilab will look like: * Utilize fundamental mechanical engineering concepts and principles to complete assignments and develop ...

Blue Origin

Thermal & Fluids Engineer III

Denver, CO

$110K - $155K/yr

As part of a small, passionate and accomplished team of engineers and analysts, you will support all aspects of thermal and fluid system design for various New Glenn spaceflight systems. You will ...

Blue Origin, LLC

Thermal & Fluids Engineer III

Seattle, WA · On-site

$110K - $155K/yr

As part of a small, passionate and accomplished team of engineers and analysts, you will support all aspects of thermal and fluid system design for various New Glenn spaceflight systems. You will ...

Blue Origin

Senior Fluids Design Engineer

Seattle, WA

$145K - $203K/yr

We are seeking a Level 4 Fluids Engineer to join our team. This position involves developing, testing, and implementing fluid systems for our aerospace projects. The ideal candidate will have ...

Blue Origin, LLC

Senior Fluids Design Engineer

Seattle, WA · On-site

$145K - $203K/yr

We are seeking a Level 4 Fluids Engineer to join our team. This position involves developing, testing, and implementing fluid systems for our aerospace projects. The ideal candidate will have ...

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Fluids Engineer information

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How much do fluids engineer jobs pay per year?

As of Jun 20, 2026, the average yearly pay for fluids engineer in the United States is $107,956.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,500.00 and $133,500.00 per year, depending on experience, location, and employer.

What is the difference between Fluids Engineer vs Mechanical Engineer?

AspectFluids EngineerMechanical Engineer
Required CredentialsBachelor's in Mechanical, Aerospace, or Civil Engineering; specialization in fluid dynamicsBachelor's in Mechanical Engineering; broad engineering fundamentals
Work EnvironmentResearch labs, aerospace, energy, and fluid systems industriesManufacturing, automotive, aerospace, and product design
Industry UsageFocus on fluid behavior, flow analysis, and hydraulicsDesign and analyze mechanical systems, including thermal and structural components

Fluids Engineers specialize in fluid dynamics, working primarily on fluid systems and flow analysis, often within aerospace, energy, or research sectors. Mechanical Engineers have a broader scope, covering various mechanical systems, including thermal, structural, and fluid components. Both roles require strong engineering fundamentals, but Fluids Engineers focus more on fluid-specific applications.

What are the key skills and qualifications needed to thrive as a Fluids Engineer, and why are they important?

To thrive as a Fluids Engineer, you need a solid background in fluid mechanics, thermodynamics, and mathematics, typically supported by a degree in mechanical, chemical, or petroleum engineering. Familiarity with simulation software like ANSYS Fluent or COMSOL, as well as relevant industry certifications, is often required. Strong analytical thinking, problem-solving abilities, and effective communication skills help Fluids Engineers excel in collaborative and technically challenging environments. These skills are vital for accurately modeling fluid behavior, ensuring system safety, and delivering efficient engineering solutions.

What are some common challenges faced by Fluids Engineers in cross-disciplinary project teams?

Fluids Engineers often work alongside mechanical, civil, and chemical engineers, which can present challenges in aligning diverse technical perspectives and priorities. Effective communication is essential, as each discipline may use different terminology or have unique design constraints. Additionally, balancing project timelines and integrating fluid dynamics solutions with broader system requirements can require adaptability and proactive problem-solving. Building strong collaborative relationships and staying open to feedback are key strategies for overcoming these challenges.

What are Fluids Engineers?

Fluids Engineers are professionals who specialize in the study and application of fluid mechanics, which involves the behavior of liquids and gases. They design, analyze, and optimize systems where fluids play a critical role, such as pipelines, pumps, turbines, and hydraulic systems. Fluids Engineers work in various industries, including oil and gas, aerospace, automotive, and manufacturing, to ensure efficient and safe transport and control of fluids. Their work often involves simulation, modeling, and testing to solve complex engineering challenges.
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Fluids Engineer jobs near you
Launch Fluids Engineer II

Launch Fluids Engineer II

Relativity Space

Cape Canaveral, FL

$104K - $143K/yr

Full-time

PTO

Posted 29 days ago

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 Launch team operates at the intersection of every major aspect of Terran R, from stages and payloads to ground systems, launch, landing, and refurbishment. The Cape is the only place where you see it all come together, offering a level of exposure and responsibility unmatched elsewhere in the program. This is where first flights happen, where history is built on top of history, and where the scale of what's underway is unlike anything in modern aerospace. The mission stays the same, but the work evolves with every milestone: from first launch to reuse, high-cadence operations, and beyond. If you're looking to define what's next in space launch and write a new playbook, not just repeat what's already been done, this is where it happens.

About the Role:

  • Responsible for the design, fabrication, operation, and maintenance of the launch pad and support facilities for Terran R
  • Design launch pad propellant and gas infrastructure, to include fluid system design, modeling, pipe stress analysis, fabrication drawings, process and instrumentation diagrams, component lists, and detailed work instructions
  • Supervise the construction activation & commissioning, and initial operations of these facilities
  • Solve technically challenging problems across a variety of disciplines under varying programmatic pressures

About You:

  • Bachelor's degree in mechanical engineering, aerospace engineering, or a related field and minimum 2 years of combined engineering experience is required
  • Experience in thermal and fluid analyses
  • General experience with fluid components such as valves, regulators, and instrumentation

Nice to haves but not required:

  • Experience safely operating complex fluid systems, including high pressure gas, cryogenic fluids, flammable liquids and gases, and hydraulics
  • General knowledge of launch vehicle ground support equipment and operations, including cryogenic tanks, pumps, valves, instrumentation, or related experience
  • Fundamental understanding with ANSYS and other piping analysis software (Caesar, Bentley Autopipe, etc.)
  • Experience Working with DOD, USAF, and NASA personnel
  • Able to work in high pressure environments and meet aggressive deadlines
  • Demonstrated problem solving and critical thinking skills as well as demonstrated customer service excellence and ability to communicate highly effectively in verbal/written form with internal and external customers

Successful candidates must clear a background check administered by the US government to obtain clearance for on-site work at our government partner location in Cape Canaveral, Florida.

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—$143,000 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 accommodations@relativityspace.com.