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Flex Cryogenic Jobs (NOW HIRING)

Venus Aerospace

Test Engineer

Houston, TX · On-site

Operate and support testing involving inert gases, cryogenic fluids, fuels, and oxidizers. * Author ... High-pressure tubing, pipe, vacuum-jacketed (VJ) tubing, and flex hoses; NPT, compression, and 37 ...

L3HHCM20

Semiconductor Engineering Technician

Mason, OH

$65K - $121K/yr

Perform data collection and other tasks involving cryogenic equipment. * Accurately record data in ... Work extended hours or flex hours to meet short term business requirements as determined by ...

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Flex Cryogenic information

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$43.5K

$104.5K

$167.5K

How much do flex cryogenic jobs pay per year?

As of Aug 14, 2026, the average yearly pay for flex cryogenic in the United States is $104,528.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $129,000.00 per year, depending on experience, location, and employer.

What skills and qualifications are needed to thrive as a flex cryogenic technician?

To thrive as a Flex Cryogenic Technician, you need a solid understanding of cryogenic systems, mechanical aptitude, and relevant technical training or certification in fields like HVAC, refrigeration, or engineering technology. Familiarity with cryogenic equipment, safety protocols, and tools such as pressure gauges, vacuum pumps, and gas analyzers is typically required. Strong problem-solving skills, attention to detail, and effective communication help ensure safety and efficiency in handling sensitive materials. These competencies are crucial for maintaining system integrity, preventing hazards, and delivering reliable performance in specialized cryogenic environments.

What does a flex cryogenic technician do?

A Flex Cryogenic Technician is responsible for the operation, maintenance, and troubleshooting of cryogenic systems and equipment, often in industrial or laboratory settings. Daily tasks may include monitoring system performance, conducting routine inspections, ensuring safety protocols are followed, and performing repairs as needed. The role frequently involves collaborating with engineers and other technical staff to support projects requiring low-temperature environments. Staying up-to-date with safety procedures and documentation is also a key part of the job.

What is a flex cryogenic?

Flex Cryogenic jobs typically involve working with cryogenic systems, which are technologies used to produce, maintain, and utilize extremely low temperatures. These roles may include responsibilities such as operating and maintaining cryogenic equipment, handling gases and liquids in cryogenic states, and ensuring safety protocols are followed. Jobs can range from technicians and engineers to researchers in industries such as healthcare, aerospace, and energy. Candidates usually need technical knowledge in cryogenics and may be required to work flexible hours depending on operational needs.

What is the difference between Flex Cryogenic vs Cryogenic Technician?

AspectFlex CryogenicCryogenic Technician
CertificationsHVAC, safety, and specialized cryogenic handling certificationsHVAC, safety, and cryogenic handling certifications
Work EnvironmentIndustrial plants, laboratories, and manufacturing facilities handling liquefied gasesIndustrial plants, laboratories, and facilities working with cryogenic systems
Employer & Industry UsageManufacturers, energy companies, and research institutionsIndustrial facilities, research labs, and gas suppliers

Flex Cryogenic and Cryogenic Technicians share similar certifications and work environments, often operating in industrial and research settings involving liquefied gases. The main difference lies in job scope: Flex Cryogenic may involve more specialized or flexible roles within cryogenic systems, while Cryogenic Technicians focus on maintenance, installation, and troubleshooting of cryogenic equipment.

More about Flex Cryogenic jobs

What cities are hiring for Flex Cryogenic jobs?

Cities with the most Flex Cryogenic job openings:

What are the most commonly searched types of Cryogenic jobs?

The most popular types of Cryogenic jobs are:

What states have the most Flex Cryogenic jobs?

States with the most job openings for Flex Cryogenic jobs include:

What job categories do people searching Flex Cryogenic jobs look for?

The top searched job categories for Flex Cryogenic jobs are:

Flex Cryogenic jobs near you
Infographic showing various Flex Cryogenic job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 19% Part Time, and 6% Contract. Highlights an 94% Physical, 3% Hybrid, and 3% Remote job distribution, with an average salary of $104,528 per year, or $50.3 per hour.

R&D Test Engineer - Fluid Systems

Commonwealth Fusion Systems

Devens, MA • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 13 days ago

Job description

About Commonwealth Fusion Systems:
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.
Combining decades of research, top talent, and new technologies, we're designing and building commercially viable fusion power plants. And we're working with policymakers and suppliers to build the energy industry of the future.
We're in the best position to make it happen. Since 2018, we've raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.
Now we're looking for more thinkers, doers, builders, and makers to join us. People who'll bring new perspectives, solve tough problems, and thrive as part of a team.
If that's you and this role fits, we want to hear from you.
Join the power movement as an R&D Test Engineer
The role of an R&D Test Engineer is to develop novel fluid systems for R&D test stands, with a major focus on supporting magnet testing. The range of process fluids is broad (liquid, gaseous, cryogenic, supercritical, molten salt, etc.), requiring strong mechanical and chemical engineering fundamentals. The ideal candidate will be resourceful-combining industry best practices, off-the-shelf and customized hardware, and creativity to deliver these fluid systems on tight timelines.
Projects will be on varying scales, from smaller-scale test stands and deep system analysis to larger, complex projects as needed for SPARC and ARC. In addition to designing and building, the engineer will actively operate as a test engineer to commission systems and design automation alongside a team of test/software engineers and operators. You must work collaboratively across production, R&D, procurement, and the SPARC team. Various projects will also require flexing outside of traditional fluids engineering into other disciplines, such as structures and materials engineering, to successfully retire risks for SPARC and ARC.
What you'll do:
  • Design fluid systems for test stands that meet test objectives/requirements, soliciting feedback from interfacing teams as necessary
  • Challenge requirements as necessary to achieve simplicity in design and develop efficient de-risking strategies and plans
  • Perform hand calculations and system level analyses demonstrating sufficient margin for fluid system requirements; build and run Ansys structural and thermal simulations on components and assemblies
  • Procure off-the-shelf process fluid components, manage relationships with vendors, draft specifications for speciality parts and design custom fluid system components as needed
  • Manage the build and commissioning of fluid systems, coordinating engineers and technicians to safely bring systems to operational status
  • Design system instrumentation and automation for safe operations

What we're looking for:
  • Bachelor's degree in mechanical, chemical, process engineering, or a closely related field
  • 5+ years of experience in the engineering of integrated fluid/mechanical systems (experience with both small-scale rapid R&D and large-scale systems is highly desired)
  • Full-lifecycle fluid systems:
    • Hands-on experience executing the entire lifecycle of large-scale thermofluid systems
  • Component expertise:
    • Experience developing specifications, sizing and working with tanks, process piping, pumps, valves, compressors, purification stages, circulators, heat exchangers, etc.
  • Design documentation:
    • Strong background in establishing system requirements, generating process flow diagrams (PFDs), and developing piping and instrumentation diagrams (P&IDs)
  • Instrumentation:
    • Experience in the design, integration, and troubleshooting of system instrumentation
  • Software and analysis tools:
    • Experience utilizing engineering tools such as ANSYS, COMSOL, 1D compressible flow codes, Python and MATLAB
  • Extreme environments:
    • Practical experience designing, building, and commissioning fluid systems for specialized pressurized, cryogenic, vacuum, and/or elevated-temperature applications
  • Vendor relations:
    • Experience sourcing complex components, drafting technical specifications, and managing relationships with specialized vendors and suppliers
  • Cross-functional communication:
    • Strong ability to distill complex fluid system details and effectively communicate to non-experts and interfacing teams across R&D, production, and procurement
  • Problem solving:
    • Highly driven to challenge assumptions, make efficient technical decisions, and develop innovative solutions on tight timelines

Bonus points for:
  • Adaptability:
    • Ability to flex into adjacent engineering disciplines, such as structures or materials, when required to help retire risks for SPARC and ARC
  • Process optimization:
    • Strong aptitude for identifying bottlenecks and improving throughput during system designs, builds, and commissioning operations

Must-have requirements:
  • Ability to occasionally lift up to 50 lbs
  • Perform activities such as stooping, climbing, typing, standing, or sitting for extended periods of time
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
  • Willingness to travel or work required nights/weekends/on-call occasionally

$90,000 - $145,000 a year
Salary range for this full-time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations. Benefits include:
• Competitive compensation with equity
• 13 Company-wide Holidays
• Flexible vacation days
• 10 sick days
• Generous parental leave policy
• Health, dental, and vision insurance
• 401(k) with employer matching
• Professional growth opportunities
• Team-building activities
#LI-Onsite
At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we're eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.
We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.
This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, "Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

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