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Fluids Engineer Jobs in California (NOW HIRING)

Vast is looking for a Integration Test Engineer , reporting to the Sr. Manager, Integration Test ... Develop clear and robust test plans for on-vehicle checkouts, fluids, instrumentation, and high ...

Fluids Test Engineer

Long Beach, CA · On-site

$162K - $230K/yr

Vast is looking for a Integration Test Engineer , reporting to the Sr. Manager, Integration Test ... Develop clear and robust test plans for on-vehicle checkouts, fluids, instrumentation, and high ...

Thermal Fluids Design Reliability Engineer

Long Beach, CA · On-site

$107K - $135K/yr

As a Thermal Fluids Design Reliability Engineer, you will ensure thermal fluids systems on Haven-1 are appropriately designed and function reliably, without failure, over their intended lifespan by ...

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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 Jul 14, 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 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.
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:
Launch Engineer III (Fluids Mechanical)

Launch Engineer III (Fluids Mechanical)

Firefly Aerospace

Lompoc, CA

Full-time

Medical, Dental, Vision, PTO

Re-posted 17 days ago


Firefly Aerospace rating

8.4

Company rating: 8.4 out of 10

Based on 9 frontline employees who took The Breakroom Quiz

23rd of 61 rated aerospace companies


Job description

ABOUT FIREFLY AEROSPACE

Firefly Aerospace is a space and defense technology company on a mission to reliably and repeatedly launch, land, and operate space systems from Earth to the Moon and beyond. As the partner of choice for critical space missions, Firefly is the first commercial company to launch a satellite to orbit with 24-hour notice and the first company to achieve a successful Moon landing. Headquartered in north Austin, Texas, Firefly is looking for passionate, hardworking innovators to join our team and help fuel our successful trajectory into space.

SUMMARY

The Launch team is hiring for high-impact, dynamic engineering positions for those who thrive on solving real problems in diverse environments. 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 is mid-level in responsibility and will need to draw on proven experience for ownership of a segment of these systems in all aspects of operation, maintenance, testing and upgrades. This position will validate and execute the performance of these systems during launch operations.

RESPONSIBILITIES

  • This is an experienced position that will provide proven experience and leadership in the operation, maintenance and testing of the launch pad fluids and pneumatic systems.
  • Lead and participate in design reviews and collaborate with multidisciplinary teams — including design engineers, technicians, external partners, and site personnel — to drive fluids system upgrades, streamline operations, and validate system readiness and performance for launch campaigns.
  • Lead and execute launch pad system and flight vehicle system integrity testing to validate system health, performance and readiness for launch campaigns.
  • Lead troubleshooting efforts, resolve any issues and non-conformances that arise during operations/testing, and support anomaly investigations
  • Opportunities to perform launch console operations or launch day close out team activities
  • Write procedures for system operation, maintenance, and vehicle testing operations.
  • Develop and execute maintenance strategies that maximize system availability and minimize downtime between missions.
  • Collaborate with customers, external stakeholders, and design teams to ensure interoperability and compliance with regulatory and range safety requirements.
  • Provide technical write-ups for systems upgrade proposals or tailoring of regulations.
  • Ability to work with Fluids and Mechanical GSE team members with limited supervision to achieve project or testing objectives. Write work instructions and supervise the execution of field work in service of the launch pad fluid and pneumatic systems.
  • Ability to supervise and mentor members of the team providing guidance on technical aspects and processes for launch site fluids and mechanical systems.

QUALIFICATIONS

Required

  • Bachelor's degree in mechanical engineering, aerospace engineering or related engineering discipline
  • 4 - 8 years of hands-on experience with fluids systems, pneumatic systems, mechanisms, hydraulic systems, tooling, flight hardware or test operations
  • Experience designing, building, troubleshooting and/or operating complex fluid or pneumatic systems in an operational or project environment.
  • Ability to create and interpret engineering documentation including drawings, P&ID schematics and test data.
  • Able to prioritize and execute tasks in a high pressure fast-paced environment
  • Ability to self-motivate and take the initiative to ensure your systems are functional and operating at peak performance
  • Demonstrated leadership experience in a fast paced environment with the ability to think critically under pressure.
  • Ability to convey complex technical information clearly and concisely to technical and non-technical audiences
  • Comfortable working in launch site environments with field testing, lifting equipment, and hazardous materials
  • Willingness to support off-hour shifts during launch operations (nights/weekends as needed)
  • Basic working knowledge of standards and regulations (ASME, AWS, AISC, AFSPCMAN 91-710, NASA-STD-5005, GSFC-STD-8009, etc.)

Desired

  • Previous experience with fluids and pneumatics systems in a test or project environment with demonstrated ability to troubleshoot and problem solve.
  • Experience with cryogenic liquid systems.
  • Experience with launch vehicle integration, transportation and systems validation.
  • Experience with FEA software (e.g., ANSYS, FEMAP, Siemens NX Nastran) and ability to verify results with hand calculations
  • Experience with hazard and risk analysis tools (i.e., FMEA, FMECA, FHA, HAZOP, etc.)
  • Familiarity with data acquisition and control methods, and data analysis tools
  • Demonstrated experience with standards and regulations (ASME, AWS, AISC, AFSPCMAN 91-710, NASA-STD-5005, GSFC-STD-8009, etc.)
  • Prior experience at a federal launch range (e.g., VSFB, CCSFS, KSC, WFF, PSC)
  • Familiarity with Atlassian products (i.e., Confluence and Jira) and version control systems (i.e., SVN, Bitbucket, etc.)
  • Ability to obtain a security clearance

Launch Engineer III -$127,823.00 - $160,000.00

Firefly offers outstanding benefits for our employees, including generous health, dental and vision plans with low plan deductibles, parental leave, educational reimbursement, short term disability, and flexible PTO options.


To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Firefly Aerospace, Inc. is an Equal Opportunity Employer; employment with Firefly is governed based on merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.


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