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Eh2

Fluid Systems Engineer

San Jose, California, United States

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hirly's read of this role

Seniority
Mid level
Stated salary
$105,000 – $150,500 per year
Country
US
Work mode
On-site / unstated
First seen by hirly
14 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

Electric Hydrogen’s mission is to decarbonize our world! Our outstanding people deliver creative decarbonization energy solutions to our customers.

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We are seeking a Fluid Systems Engineer to join the Product Engineering team and contribute to the design, development, and optimization of hardware and fluid systems for PEM electrolysis plants. In this role, you will work closely with cross-functional teams to develop next-generation products by solving cost, reliability, and performance challenges. Depending on your experience, you will support or lead fluid systems design activities throughout the product lifecycle, from concept development and requirements definition through production and sustaining engineering.

You will work onsite in San Jose, CA and report to the Director, Product Engineering.

Primary Responsibilities

Develop and improve fluid systems hardware by translating plant and customer requirements into engineering specifications

Create and maintain engineering documentation, including Piping and Instrumentation Diagrams (P&IDs) and Process Flow Diagrams (PFDs)

Perform engineering calculations, process simulations, and sensitivity analyses to support product optimization and requirements management

Evaluate and recommend equipment based on technical and commercial requirements

Support or lead process safety analyses, including HAZOP and LOPA activities

Perform engineering studies including relief device sizing, process simulation, CFD coordination, and heat transfer calculations

Develop process documentation, operating philosophies, and engineering narratives

Support engineering change management and continuous product improvements throughout the product lifecycle

Collaborate with instrumentation, controls, electrical, mechanical, manufacturing, and systems engineering teams to ensure successful product integration

Support reliability initiatives including DFMEA, RCA, and RAM analyses

Travel up to 10% to suppliers, manufacturing facilities, and customer sites

Qualifications

Bachelor's or Master's degree in Chemical Engineering, Mechanical Engineering, or a related engineering discipline

2–5+ years of relevant engineering experience with candidates leveled based on technical expertise, demonstrated ownership, and overall experience

Experience designing fluid systems for industrial process equipment or complex engineered products

Experience with process design and simulation software such as Aspen Plus or Aspen HYSYS

Experience with fluid systems, piping, plumbing, tubing, valves, pumps, heat exchangers, or related process equipment

Working knowledge of fluid dynamics, heat transfer, mass transport, reaction chemistry, and mechanics of materials

Familiarity with process safety methodologies, including HAZOP and LOPA

Knowledge of applicable process industry codes and standards

Strong analytical, problem-solving, communication, and cross-functional collaboration skills

Experience in one or more of the following industries: hydrogen, energy storage, chemicals, biopharmaceuticals, semiconductors, water treatment, aerospace, or other industrial process industries

#LI-Onsite

Compensation and Benefits | P2-P3

San Jose Zone

$105,000 — $150,500 USD

Actual base salary offered to the hired applicant will be determined based on their work location, level, qualifications, job-related skills, as well as relevant education or training and experience.​

Base salary is just one part of Electric Hydrogen’s total rewards package. We feel strongly that our team should not have to worry about having quality healthcare. In addition to the base salary offered, the hired applicant may receive:​

an equity grant​

time off programs​

a $75/month cell phone allowance​

a 4% employer 401(k) match​

access to competitive medical, dental, vision, life insurance, short-term & long-term disability plans

a discretionary bonus​

Electric Hydrogen’s benefits programs are subject to eligibility requirements.

About Electric Hydrogen

Electric Hydrogen is a team of the world's experts in scaling technologies for the post-carbon world, with a proven record in transforming the grid and transportation sectors. Backed by some of the world's top venture capital firms, we design and manufacture electrolytic hydrogen systems matched to renewable power sources to create green hydrogen by splitting water. We are building a cost-effective and transformative path between renewable energy and multiple large industrial sectors. Abundant and low-cost renewable energy sources will power the world, and Electric Hydrogen technology will use this energy to decarbonize industry through sustainable materials. We were founded in 2020 and are based in California and Massachusetts.

Electric Hydrogen is proud to be an equal opportunity employer. We are dedicated to building a diverse, inclusive, and authentic workplace for all to belong. We are aware that people from historically underrepresented groups are less likely to apply if they don't meet 100% of the job requirements. We are actively working on efforts to change this social norm. If you are excited about this role, we encourage you to apply !

Original posting on Eh2's site ↗

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