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Cryogenic Engineering Jobs in California (NOW HIRING)

LLNL

Cryogenic Systems Engineering Manager

Livermore, CA · On-site

$227K - $288K/yr

We have an opening for a Cryogenic Systems Engineering Manager to lead and advance the cryogenic operations and engineering capabilities that support the successful fielding of all NIF targets. You ...

LLNL

Cryogenic Systems Engineering Manager

Livermore, CA

$227K - $288K/yr

We have an opening for a Cryogenic Systems Engineering Manager to lead and advance the cryogenic operations and engineering capabilities that support the successful fielding of all NIF targets. You ...

LLNL

Cryogenic Systems Engineering Manager

Livermore, CA · On-site

$9.7K/wk

We have an opening for a Cryogenic Systems Engineering Manager to lead and advance the cryogenic operations and engineering capabilities that support the successful fielding of all NIF targets. You ...

LLNL

Senior Cryogenic Factory Technologist

Livermore, CA · On-site

$9.7K/wk

We have an opening for a Senior Cryogenic Factory Technologist supporting the Cryogenic Target ... This position is in the Laser Systems Engineering & Operations (LSEO) Division of the Engineering ...

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All JobsCryogenic Engineering JobsCryogenic Engineering Jobs in California

Cryogenic Engineering information

What are the key skills and qualifications needed to thrive as a cryogenic engineer, and why are they important?

To thrive as a Cryogenic Engineer, you need a solid background in mechanical, chemical, or electrical engineering, typically supported by a relevant engineering degree and experience in low-temperature systems. Familiarity with CAD software, cryogenic process simulation tools, and safety regulations, as well as certifications in cryogenics or pressure systems, are often required. Strong problem-solving abilities, attention to detail, and effective teamwork are critical soft skills for this field. These competencies ensure the safe and efficient design, operation, and maintenance of cryogenic systems, which are vital for applications in industries like aerospace, medical, and energy.

What is cryogenic engineering?

Cryogenic engineering is a specialized field of engineering that focuses on the production, maintenance, and application of extremely low temperatures, typically below -150°C (-238°F). This discipline involves the design and operation of equipment and systems used to produce, store, and transport liquefied gases such as liquid nitrogen, helium, and hydrogen. Applications of cryogenic engineering can be found in industries like aerospace, medical technology, energy, and scientific research, where materials and processes require ultra-low temperatures. Cryogenic engineers work on challenges related to thermal insulation, material properties at low temperatures, and safe handling of cryogenic fluids.

What is the difference between Cryogenic Engineering vs Mechanical Engineering?

AspectCryogenic EngineeringMechanical Engineering
Required CredentialsBachelor's or Master's in Cryogenic Engineering or related fieldsBachelor's or Master's in Mechanical Engineering
Work EnvironmentLaboratories, research facilities, industries handling low-temperature systemsFactories, design offices, manufacturing plants
Industry UsageSpecialized in low-temperature systems, liquefied gases, cryogenics researchBroad applications including machinery, automotive, aerospace

While both fields require engineering degrees, Cryogenic Engineering focuses on low-temperature systems and liquefied gases, often working in specialized labs and industries. Mechanical Engineering covers a wider range of mechanical systems and industries, making Cryogenic Engineering a niche within the broader mechanical field.

What are some common challenges faced by cryogenic engineers in daily operations?

Cryogenic engineers often work with extremely low temperatures, which presents unique challenges such as material brittleness, thermal contraction, and the need for specialized insulation. Ensuring safety and preventing leaks or contamination are critical, as even minor failures can have significant consequences. Additionally, cryogenic engineers frequently collaborate with multidisciplinary teams, including mechanical, electrical, and safety engineers, to design, test, and maintain complex systems. Adapting to new technologies and strict regulatory standards is also a regular part of the job.

How much does a cryogenic engineer make?

The average salary for a cryogenic engineer typically ranges from $70,000 to $120,000 per year, depending on experience, education, and location. Senior roles or those with specialized skills in cryogenic systems and certifications can earn higher salaries, often exceeding $150,000 annually.

What does a cryogenic engineer do?

A cryogenic engineer designs, develops, and maintains systems that handle extremely low-temperature fluids and gases, such as liquid nitrogen or helium. They work on applications like superconducting magnets, space technology, and liquefied gases, often using specialized tools and safety protocols to ensure system efficiency and safety.
What are popular job titles related to Cryogenic Engineering jobs in California? For Cryogenic Engineering jobs in California, the most frequently searched job titles are:
What job categories do people searching Cryogenic Engineering jobs in California look for? The top searched job categories for Cryogenic Engineering jobs in California are:
What cities in California are hiring for Cryogenic Engineering jobs? Cities in California with the most Cryogenic Engineering job openings:
Cryogenic Engineering jobs near you
Infographic showing various Cryogenic Engineering job openings in California as of August 2026, with employment types broken down into 88% Full Time, 6% Part Time, 2% Temporary, 3% Contract, and 1% Nights. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Senior Mechanical | Cryogenic Engineer

Rigetti Computing

Berkeley, CA

$165K - $190K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 8 days ago

Job description

Rigetti Computing builds full-stack quantum computers - from superconducting qubit devices fabricated in our own foundry to cloud-accessible quantum processors. We are seeking a Senior Mechanical/Cryogenic Engineer to own the mechanical architecture of our quantum hardware systems, from room-temperature infrastructure down to the millikelvin core of our dilution refrigerators.

You will lead the design of the cryogenic signal chain, define mechanical interfaces across thermal stages, and work directly alongside quantum physicists, RF engineers, and systems teams. This is a high-ownership role: you will drive design decisions end-to-end, from concept through qualification, on some of the most technically demanding hardware in the industry.

Key Responsibilities

Cryogenic Hardware Design

  Own the mechanical design of cryogenic hardware from 300 K to millikelvin - thermal anchoring, RF wiring, flex interconnects, coaxial routing, filter housings, and connector packaging across all temperature stages.

  Lead the full design lifecycle: concept, CAD, GD&T drawings, BOMs, tolerance analysis, prototype builds, qualification testing, and manufacturing release.

  Define cryogenic mechanical interfaces and thermal conduction budgets; drive design-for-manufacturability with external machine shops and precision vendors.

Simulation & Analysis

  Perform mechanical, thermal, and vibration analyses independently using COMSOL, ANSYS, or equivalent; use simulation results to drive design decisions and iteration.

  Conduct tolerance stack-up analyses for multi-component assemblies in constrained cryostat environments.

Integration, Leadership & Collaboration

  Lead prototype builds, system integration, and cryogenic bring-up; diagnose integration failures and drive root cause analysis.

  Serve as the mechanical lead in cross-functional programs alongside quantum physicists, RF engineers, and systems teams, mentor junior engineers and lead design reviews.

  Maintain rigorous documentation - CAD models, drawings, BOMs, and revision-controlled design records - within the company PLM system.

Required Qualifications

  B.S. or M.S. in Mechanical Engineering or related field (M.S. preferred).

  7+ years designing complex mechanical or electromechanical systems with end-to-end hardware ownership.

  Expert-level SolidWorks - large assemblies, GD&T-compliant drawing packages, and DFM workflows.

  Independent proficiency in SolidWorks, COMSOL or ANSYS for thermal and structural analysis.

  Experience with hardware operating in cryogenic, vacuum, or extreme thermal environments.

  Strong ME fundamentals: stress analysis, tolerance stack-ups, materials selection, and failure mode analysis.

  Proven ability to lead technical efforts and collaborate across multidisciplinary teams.

Preferred Qualifications

  Direct experience with dilution refrigerators, cryostats, or sub-Kelvin systems in quantum computing or precision instrumentation.

  Knowledge of superconducting quantum hardware architecture and millikelvin design constraints.

  RF/microwave packaging experience: connector specification, hermetic sealing, and cable routing in cryostats.

  Familiarity with cleanroom protocols, vacuum-compatible assembly, and contamination-sensitive environments.

$165,000 - $190,000 a year
Base Salary
Rigetti complies with all local and state regulations in regards to displaying salary ranges. Final compensation for this role will be determined by various factors such as a candidate's relevant work experience, skills, and geographic location. Rigetti offers a full slate of benefits from competitive salaries, equity, medical, dental and vision for employees as well as a 401(k) plan, a paid parental leave program, rejuvenation days, and a vacation policy that aligns with local regulations and industry standards.
As engineering leaders, we value diversity and are committed to building a culture of inclusion to attract and engage innovative thinkers. Our technology, meant to serve all of humanity, cannot succeed if those who built it do not mirror the diversity of the communities we serve. Applications from women, minorities, and other under-represented groups are encouraged.

About Rigetti
Rigetti Computing is a pioneer in full-stack quantum computing. The company has operated quantum computers over the cloud since 2017 and serves global enterprise, government, and research clients through its Rigetti Quantum Cloud Services platform. The company's proprietary quantum-classical infrastructure provides ultra-low latency integration with public and private clouds for high-performance practical quantum computing. Rigetti has developed the industry's first multi-chip quantum processor for scalable quantum computing systems. The company designs and manufactures its chips in-house at Fab-1, the industry's first dedicated and integrated quantum device manufacturing facility. Rigetti was founded in 2013 and today employs more than 150 people with offices in the United States, U.K., and Australia. Learn more at www.rigetti.com.

Don't see the job you want? Apply here so we can keep in touch with you when the right role opens up in the future!

Export Licensing Compliance
Rigetti is committed to full compliance with applicable anti-discrimination laws. We are an equal opportunity employer and value diversity at our company. We strive to create an inclusive work environment and will not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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