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Fluids Engineer Jobs in California (NOW HIRING)

This centralized approach provides engineers and technicians with exposure to the entire product ... As a system owner, you will design, analyze, and operate automated fluids systems. Teamwork and ...

Test Fluids Engineer II

Long Beach, CA · On-site

$104K - $156K/yr

This centralized approach provides engineers and technicians with exposure to the entire product ... As a system owner, you will design, analyze, and operate automated fluids systems. Teamwork and ...

We are looking for a propulsion and fluids systems engineer to join the team responsible for all aspects of the launch pad propellant and pneumatic systems. This position will grow in responsibility ...

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Fluids Engineer information

See California salary details

$23.7K

$106.5K

$169.7K

How much do fluids engineer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for fluids engineer in California is $106,543.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,400.00 and $131,800.00 per year, depending on experience, location, and employer.

What is a fluids engineer?

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.

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 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 job categories do people searching Fluids Engineer jobs in California look for?

The top searched job categories for Fluids Engineer jobs in California are:

What cities in California are hiring for Fluids Engineer jobs?

Cities in California with the most Fluids Engineer job openings:

Infographic showing various Fluids Engineer job openings in California as of August 2026, with employment types broken down into 80% Full Time, and 20% Part Time. Highlights an 100% In-person job distribution, with an average salary of $106,543 per year, or $51.2 per hour.

Senior Stage Fluids Engineer

Long Beach, CA • On-site


Rocket Lab Corporation
Aerospace Product and Parts Manufacturing • 201 - 500 employees

9.2

Company rating: 9.2 out of 10

Based on 14 frontline employees who took The Breakroom Quiz

4th of 72 rated aerospace companies

People enjoy working here

Good employer

Paid breaks


$109K - $150K/yr

Full-time

Re-posted 19 days ago


Job description

NEUTRON 

Rocket Lab's Neutron team is responsible for bringing our new large rocket Neutron and its launch and test sites to life. From designing and testing Neutron's structures and components, to firing up its new Archimedes engines, to setting up Neutron's launch pads and test sites across the United States, joining the Neutron team is your opportunity to help launch a new large rocket for the very first time. 

SENIOR STAGE FLUIDS ENGINEER

A Senior Stage Fluids Engineer, Neutron owns the design, build, test, and review of multiple fluid systems across the Neutron launch vehicle. Our team owns all plumbing and systems between the tanks and the engines. Your work within the Fluid Systems department will turn vehicle-level requirements into a fluid network that enables Neutron to operate with aircraft-like reusability and reliability.

WHAT YOU'LL GET TO DO

  • Design plumbing systems, components, and their secondary structures. Provide feedback to your peers on their designs, drawings, and methodology.
  • Analyze these systems and components in the harsh and dynamic environments of launch. Review and provide feedback for critical structural analysis of fluid components and systems.
  • Model these systems to characterize and predict system behavior at all conditions. Understand and interpret models of others and work to improve efficacy of modelling.
  • Test and qualify these systems, components, and modules.
  • Manage requirements, realization, and implementation of systems in the larger launch vehicle context.
  • Integrate your hardware into the vehicle.
  • Review data from component, system, and vehicle level testing to optimize and improve future designs.
  • Collaborate with components, propulsion, structures, mechanical, operations, and flight software teams to develop and define vehicle functions.
  • Create tools to enhance the team's analysis capabilities, streamline workflow and optimize launch operations.
  • Set the standard for design, production, and testing processes. Enforce these standards across the program and beyond.
  • Mentor and grow your peers to strengthen the overall team.

Please note: This position can be hired as a Senior I, or Senior II Level.

YOU'LL BRING THESE QUALIFICATIONS AS A SENIOR STAGE FLUIDS ENGINEER I:

  • Bachelor's degree in Mechanical Engineering or relevant engineering discipline.
  • 5+ years of experience in a hardware rich environment.
  • Experience with fluid components design and usage for valves, pressure vessels, flex elements & fittings.
  • Experience with DfM/DfAM, machining processes, and welding processes with a proven understanding of mechanical drafting and GD&T.

YOU'LL BRING THESE QUALIFICATIONS AS A SENIOR STAGE FLUIDS ENGINEER II:

  • Bachelor's degree in Mechanical Engineering or relevant engineering discipline.
  • 8+ years of experience in a hardware rich environment.
  • Experience with fluid components design and usage for valves, pressure vessels, flex elements & fittings.
  • Experience with DfM/DfAM, machining processes, and welding processes with a proven understanding of mechanical drafting and GD&T.

THESE QUALIFICATIONS WOULD BE NICE TO HAVE:

  • 8+ years of experience in a fast-paced aerospace environment where you have completed difficult projects while collaborating effectively with other key groups.
  • Strong understanding of how to design for classic aerospace constraints: minimizing mass while maintaining manufacturability, function, and low costs.
  • Ability to earn trust, maintain positive professional relationships, & contribute to a culture of inclusion.
  • Experience working with a distributed team across the globe.
  • Advanced degree in a fluid mechanics-heavy field.
  • Experience with oxygen, methane, and/or cryogenic systems.
  • Experience using Siemens NX & Teamcenter.
  • Demonstrated ability to rally a team to make & execute good decisions in a fast-paced environment with limited information.
  • Experience with Aerospace Processes, Standards, and Workflows, from JIRA to AS9100.

This position may require prolonged periods of sitting, standing, walking, computer work, and occasional exposure to moderate levels of noise, dust, and fumes in production areas



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