Mechanical engineer jobs in Anaheim, CA and nearby (453 jobs)

Mechanical engineer jobs within 25 miles of Anaheim, CA. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Counted Nov 8, 2026

Hiring at a glance

View jobs

Open jobs: 453
Employers: 152

Advertised starting pay

Average starting payUSD / year: $118,510Across 93 listings
Average starting payUSD / hour: $65.94Across 16 listings

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote: 0%0 listings
Hybrid: 3%14 listings
On-site: 17%75 listings

Not specified: 80% (364 listings)

Employers hiring include Anduril Industries (62), Relativity Space (19), Rivian (15).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

Mechanical engineer jobs in Anaheim, CA and nearby

Within 25 miles

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Added 1 day ago
G
Mechanical Engineer
GPAC
Los Angeles, CA
- $85,000 to $155,000 USD / year
Bachelors Degree in Mechanical Engineering from an ABET accredited college, or equivalent
Added 1 day ago
G
Mechanical Engineer. Plumbing/Fire Protection
GPAC
Los Angeles, CA
- $85,000 to $130,000 USD / year
In this Position you’ll work as Project Engineer on industrial, educational, health care and commercial facilities projects. Your main responsibilities on HVAC, fire protection, piping,…
Added 1 day ago
G
Mechanical Engineer
GPAC
Los Angeles, CA
- $95,000 to $135,000 USD / week
In this Role you’ll work as Project Engineer on industrial, educational, health care and commercial facilities projects. Your main responsibilities on HVAC, fire protection, piping,…
Added 1 day ago
G
Mechanical Engineer
GPAC
Anaheim, CA
- $100,000 to $140,000 USD / year
Mechanical Engineer (HVAC / Plumbing / Fire Protection) | 💰 Competitive Compensation ($100K–$140K+ DOE) | Full Benefits
Added 1 day ago
IG
Industrial Mechanical Engineer
Insight Global
Costa Mesa, CA
- From $40 USD / hour
Added 1 day ago
Mechanical Design Engineer
Actalent
Torrance, CA
Job Title: Mechanical Design EngineerJob DescriptionThe Mechanical Design Engineer creates accurate, parametric CAD models and detailed drawings for complex manufactured hardware across…
Added 1 day ago
Mechanical Engineer II
Divergent
Torrance, CA
Added 2 days ago
J
Mechanical Engineer
Jobot
Irwindale, CA
- $105,000 to $135,000 USD / year
Added 2 days ago
Mechanical Engineer III - IV
Syska Hennessy Group
Los Angeles, CA
Added 2 days ago
Mechanical Engineer
Jacobs
Irvine, CA
We're seeking a Mechanical Engineer to join our growing California Buildings team. In this role, you'll support the design and delivery of HVAC, plumbing, hydronic, and mechanical building…
Added 2 days ago
G
Mechanical Engineer (PE) - HVAC Design
GPAC
Los Angeles, CA
- $90,000 to $150,000 USD / year
Mechanical Engineer (PE) - HVAC Design (Los Angeles)
Added 2 days ago
Senior Mechanical Engineer, Actuators
Anduril Industries
Costa Mesa, CA
Added 2 days ago
Mechanical Engineer, Actuators
Anduril Industries
Costa Mesa, CA
Added 2 days ago
Associate Mechanical Engineer, Actuators
Anduril Industries
Costa Mesa, CA
Added 3 days ago
Sr. Mechanical Engineer
Select Source International
Yorba Linda, CA
Added 3 days ago
Mechanical Engineer
Amtec
Corona, CA
Amtec is seeking a Senior Mechanical Engineer to work for a global capital equipment company located in Corona, CA. This person will analyze, create and recommend mechanical designs for new…
Added 4 days ago
Mechanical Engineer III
RTM Engineering Consultants, LLC
Irvine, CA · Corona, CA
Added 4 days ago
F
Senior Robotics Engineer, Mission Autonomy
FieldAI
Irvine, CA
- $180,000 to $220,000 USD / year
Added 4 days ago
Mechanical Engineer
Fluor
Newport Beach, CA
We are currently seeking a high-caliber Mechanical Engineer for a direct basis within our client’s team of experienced professionals. Located in N
Added 4 days ago
Mechanical Design Engineer
Actalent
Carson, CA
Job Title: Mechanical Design EngineerJob DescriptionThis role focuses on designing and developing electromechanical products, including motors and human-machine interface components, for…
Added 4 days ago
Senior Mechanical Engineer (PE)
SST Direct
Los Angeles, CA
Superior Skilled Trades is partnered with a company seeking an experienced Senior Mechanical Engineer (PE) to join its engineering team.
Added 4 days ago
Mechanical Design Engineer
SoLa Impact
Los Angeles, CA
Model/ Z seeks an experienced Mechanical Design Engineer to support product development and the design of manufacturable solutions for modular housing production, with a focus on improving…
Added 6 days ago
Mechanical Engineer II, Tooling
Relativity Space
Long Beach, CA
Added 6 days ago
Mechanical Engineer - HVAC/Plumbing - Data Centers
Black & Veatch Family of Companies
Los Angeles, CA
Added 8 days ago
A
Mechanical Design Engineer
Actalent
Irvine, CA
- $57 to $72 USD / hour
If you're tired of being the engineer who only reviews drawings, coordinates consultants, or manages projects from a distance, this opportunity is different.We're looking for a hands-on…

Fluidstack

Mechanical Engineer, Thermofluids

Austin, TX, United States
San Francsisco, CA, United States
Los Angeles, CA, United States

$210,000 to $260,000 USD / year

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Job details

Pay: $210,000 to $260,000 USD / year
Experience: 10+ years of experience in thermofluids engineering, including thermodynamic cycle modeling, heat exchanger design, and high-pressure fluid system design.
Posting language: English
Posted: Oct 29, 2026

Original job description

ABOUT FLUIDSTACK

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.

We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.

We hire people who care deeply about this problem space. If that is you, please apply!

HOW WE OPERATE

Be a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.
Insane urgency. We drive everything forward as fast as possible.
Reason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.
Love of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.
Build something that actually matters. If you're going to spend your time, spend it on something that matters to the world.

THE THERMOFLUIDS R&D TEAM

Examples of key problems the team is working on

Reject 10s of GW of heat, starting now. Fluidstack is targeting 10s of GW of compute over the next two years. Every watt of it becomes heat that has to go somewhere, and no cooling team has ever been asked to open at that scale rather than grow into it.
Design and build the machines, because nobody can supply them. The merchant compressor market cannot deliver at this rate, and the vendor base behind today’s chillers will not scale to gigawatts. We are taking compressor and chiller design in house, working on machine architectures nobody sells today, and going from blank sheet to production faster than this industry thinks is possible.
Own every thermofluids problem behind the fleet, not just the chiller. Working fluid and cycle architecture, heat exchangers at a scale that dominates the cost of the plant, two-phase heat transfer at the chip, and thermal energy storage. All of it is open, and whatever this team lands gets built thousands of times.

ROLE SCOPE

Define what the machine has to be, owning the cycle model that sets the working fluid and the pressures, temperatures and flows the compressor, turbine and exchangers are designed against.
Design heat exchangers with surface areas running into millions of square meters, among the largest single drivers of a data center’s physical footprint.
Design the fluid system around the machine: piping, valves, headers, relief and isolation, sized against the pressure-drop budget the cycle can afford and the pressures the fluid actually runs at.
Run the trades that decide the machine: air-side temperature rise, face velocity and subcooling. Derive the operating points from coupled exchanger ratings rather than asserted approach temperatures, so infeasible designs get caught in the model instead of in hardware.
Take the cycle predictions onto the test stand and reconcile them against measured COP, then say plainly where the model was wrong.

WHAT WE'RE LOOKING FOR

The below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would https://jobs.ashbyhq.com/fluidstack/05c2e69c-42f9-4fcb-9cf0-a467aaf98f1c.

10+ years of experience in thermofluids engineering, including thermodynamic cycle modeling, heat exchanger design, and high-pressure fluid system design.
You’ve built a thermodynamic cycle model from fluid properties up and defended its assumptions to someone actively trying to break it.
You’ve sized real heat exchangers against published correlations, and you’ve caught a case where the correlation belonged to a different geometry than the one in front of you.
You’ve calibrated a model against a machine datasheet or test data and reported the gap honestly rather than tuning until it disappeared.
You’ve written the analysis that changed a design decision, in a form that people who never ran the code could read and act on.
You’ve sized a relief path and been the one who signed off that the system was protected.
You’ve held a result open when it was still open, instead of closing it early to be helpful.
You're comfortable with regular travel: expect 25% or more, depending on business needs.
Most of our engineering team, stakeholders, and work are based in Austin, TX, and we value working in person. We have a strong preference for Austin and run a hybrid model, but we're open to other locations for the right role and candidate.
Bonus: Vapor-compression and transcritical cycles (chillers, heat pumps, refrigeration). Propulsion and cryogenic fluid systems (feed systems, regenerative cooling, two-phase transport). Piping and relief design for high-pressure fluid systems. Real-gas properties and two-phase heat-transfer correlations (CoolProp, REFPROP, Cavallini, Gnielinski, Wang). Data center thermal architecture (CDUs, dry coolers, direct-to-chip).

We are committed to pay equity and transparency.

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

Applicant Privacy Notice https://fluidstack.io/legal/applicant-privacy-notice AI Screening Notice https://fluidstack.io/legal/ai-screening-notice Ashby Bias Audit https://fluidstack.io/legal/ashby-bias-audit

You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.

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