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Fluid System Control Engineer Jobs (NOW HIRING)

Relativity Space

Senior Fluid Systems Engineer

Long Beach, CA · On-site

$109K - $150K/yr

As a Vehicle Fluid Systems Engineer, you will be responsible for the fluid system architecture and ... Own the vehicle fluid subsystem architecture and schematics, including system control scheme ...

Blue Origin LLC

Fluid System Engineer II

Seattle, WA · On-site

$100 - $125/hr

## Fluid System Engineer IIApplylocations: Greater Seattle Areatime type: Full timeposted on: Posted ... Implement design, procurement, and production of reaction control fluid subsystems and associated ...

Blue Origin LLC

$100 - $125/hr

## Fluid System Engineer IIApplylocations: Space Coast, FL: Greater Seattle Areatime type: Full ... Implement product definition, design, procurement, and production of environmental control and vent ...

Blue Origin LLC

NY · On-site

$100 - $125/hr

## Fluid System Engineer IIApplylocations: Space Coast, FL: Greater Seattle Areatime type: Full ... Implement product definition, design, procurement, and production of environmental control and vent ...

Blue Origin

Fluid System Engineer II

Seattle, WA · On-site

$99K - $138K/yr

Implement design, procurement, and production of reaction control fluid subsystems and associated ... engineering, or related field * Proven experience with spacecraft or launch vehicle fluid system ...

Blue Origin

Fluid System Engineer II

Seattle, WA

$99K - $138K/yr

Implement product definition, design, procurement, and production of environmental control and vent ... engineering, or related field * Proven experience with spacecraft or launch vehicle fluid system ...

Aetherflux

Controls Engineer

Kent, WA · On-site

$160K - $200K/yr

Architect and implement closed-loop control for fluid system parameters (pressure, temperature ... Proficiency in embedded programming (C/C++) for real-time control applications. * Experience ...

Socket.dev

Controls Engineer

Kent, WA · On-site

$150 - $200/hr

Architect and implement closed-loop control for fluid system parameters (pressure, temperature ... Proficiency in embedded programming (C/C++) for real-time control applications. * Experience ...

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Fluid System Control Engineer information

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$61K

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$175.5K

How much do fluid system control engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for fluid system control engineer in the United States is $108,776.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,000.00 and $126,500.00 per year, depending on experience, location, and employer.

What are popular job titles related to Fluid System Control Engineer jobs?

For Fluid System Control Engineer jobs, the most frequently searched job titles are:

Senior Fluid Systems Engineer

Long Beach, CA • On-site

Relativity Space
Aerospace Product and Parts Manufacturing • 501 - 1,000 employees
Learn more about Relativity Spaceexternal

$109K - $150K/yr

Full-time

Re-posted 25 days ago

Relativity Space rating

9.7

Company rating: 9.7 out of 10

Based on 8 frontline employees who took The Breakroom Quiz

2nd of 72 rated aerospace companies

Job description

About the Team:

The Stage Fluids team designs and delivers the propellant, pressurant, pneumatics, and other fluid systems that turn structures into functioning rockets. The team has full ownership across design, production, test, and flight, maintaining a holistic view of Terran R, focused not on isolated parts but integrated functionality. Working on-site at the factory means you're never far from the hardware, enabling rapid iteration and tight feedback loops across design and manufacturing. You won't just be handed requirements: you'll be expected to ask the right questions, collaborate with partners across the company, and ultimately find the best solutions for Terran R.

About the Role: 

As a Vehicle Fluid Systems Engineer, you will be responsible for the fluid system architecture and function for a given vehicle fluid subsystem. You will apply expertise in system architecture, systems operations, and fluid thermodynamics applications to guide hardware design, system analysis, manufacturing, validation and operations.

      Own the vehicle fluid subsystem architecture and schematics, including system control scheme, system and component selection and sizing
      Conducting fluid and thermal analyses, including system sizing and characterization using a variety of base analytical methods (1D steady-state, fluid networks, etc.)
      Leading and participating in system and hardware design and manufacturing reviews
      Defining and supporting test objectives and test campaigns to validate system design, system models and overall system performance including supporting integrated vehicle testing and launch

About You:
      Bachelor's degree (Mechanical Engineering or relevant)
      4+ years of experience working with fluids systems
      Experience applying engineering fundamentals in system design, thermodynamics, fluid dynamics, and heat transfer
      Experience with one or more fluid or thermal modeling tools for internal compressible and incompressible analysis
      Proficiency in Python or a similar programing language for scientific computing and automated test/simulation data analysis

Nice to haves, but not required:
      Experience with launch vehicles and spacecraft

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