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Liquid Cooling Testing Engineer Jobs (NOW HIRING)

Flex

Sr. Liquid Cooling Engineer

Austin, TX · On-site

$103.60K - $142.20K/yr

SMT, Fixture Designs, Assembly & Test, Backend Processes, Testing and Equipment Engineering ... CDF modelling liquid cooling. preferred * High-density liquid cooling (HDLC) system design ...

CoreWeave

Hardware Engineer - Liquid Cooling

Bellevue, WA · On-site

$120K - $242K/yr

Establish processes for internal liquid cooling hardware testing, deployment, and performance ... Proven ability to collaborate with hardware and facility engineering teams to deliver integrated ...

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How much do liquid cooling testing engineer jobs pay per hour?

As of Jun 2, 2026, the average hourly pay for liquid cooling testing engineer in the United States is $44.24, according to ZipRecruiter salary data. Most workers in this role earn between $33.41 and $52.40 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Liquid Cooling Testing Engineer, and why are they important?

To thrive as a Liquid Cooling Testing Engineer, you need a background in mechanical or thermal engineering, with expertise in thermodynamics, fluid dynamics, and hands-on testing experience. Familiarity with simulation software (like CFD tools), data acquisition systems, and industry certifications such as Six Sigma or thermal management credentials is commonly required. Strong analytical thinking, attention to detail, and effective communication are crucial soft skills for diagnosing issues and working in cross-functional teams. These skills ensure that systems are tested accurately, operate reliably, and meet safety and performance standards.

What are some typical challenges faced by Liquid Cooling Testing Engineers during system validation?

Liquid Cooling Testing Engineers often encounter challenges related to maintaining precise temperature control and preventing leaks during system validation. Troubleshooting unexpected thermal performance issues and ensuring compatibility between various components are also common hurdles. Additionally, engineers must carefully document test results and collaborate closely with design and manufacturing teams to address any discrepancies. Effective communication and attention to detail are key to successfully navigating these challenges and ensuring reliable, high-performance cooling solutions.

What does a Liquid Cooling Testing Engineer do?

A Liquid Cooling Testing Engineer is responsible for designing, implementing, and evaluating liquid cooling systems, primarily used for thermal management in electronics, data centers, or industrial equipment. Their job involves setting up tests, monitoring system performance, analyzing data, and ensuring that cooling solutions meet safety and efficiency standards. They collaborate with design and manufacturing teams to troubleshoot issues and optimize cooling systems. This role often requires expertise in thermodynamics, fluid mechanics, and the use of specialized testing equipment.

What is the difference between Liquid Cooling Testing Engineer vs Thermal Testing Engineer?

AspectLiquid Cooling Testing EngineerThermal Testing Engineer
Required CredentialsBachelor's in Mechanical/Electrical Engineering, relevant certificationsBachelor's in Mechanical/Electrical Engineering, relevant certifications
Work EnvironmentLaboratories, manufacturing facilities, R&D centersLaboratories, testing labs, R&D centers
Industry UsageElectronics cooling, data centers, high-performance computingElectronics, automotive, aerospace, consumer devices
Comparison FocusSpecializes in liquid cooling systems testing and validationFocuses on overall thermal performance testing of devices

While both roles involve thermal management testing, the Liquid Cooling Testing Engineer specializes in testing liquid cooling systems, whereas the Thermal Testing Engineer covers broader thermal performance assessments. The roles often overlap but differ in focus and specific expertise within thermal management.

Infographic showing various Liquid Cooling Testing Engineer job openings in the United States as of May 2026, with employment types broken down into 88% Full Time, 10% Part Time, and 2% Contract. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution, with an average salary of $92,027 per year, or $44.2 per hour.
Sr. Liquid Cooling Engineer

Sr. Liquid Cooling Engineer

Flex

Austin, TX • On-site

$103.60K - $142.20K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

Job description

Job Posting Start Date 03-31-2026 Job Posting End Date 05-29-2026Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.Job Summary

To support our extraordinary team who build great products and contribute to our growth, we're looking to add a Sr. Liquid Cooling Engineer located in Austin, TX.

Reporting to the Director, Operations Engineering the Sr. Liquid Cooling Engineer will apply expert insights to the design and implementation of advanced liquid cooling systems, ensuring the highest standards of performance and efficiency in thermal management. This role requires a strong understanding of cooling technologies, collaborative problem-solving skills, and the ability to innovate within the rapidly evolving landscape of thermal management solutions.

What a typical day looks like:

  • Develop and design efficient liquid cooling systems for various applications.
  • Implement thermal management strategies to optimize performance.
  • Conduct analysis of thermal data and system performance.
  • Collaborate with cross-functional teams to integrate cooling solutions.
  • Hold up the raising and introduction of engineering change orders (ECOs)
  • Monitor system performance and apply improvements as necessary.
  • Ensure compliance with industry standards and best practices.
  • Test and evaluate cooling systems to ensure reliability and effectiveness.
  • Support the development of project specifications and scope.
  • Create documentation for design processes, best practices and system specifications.
  • Maintain up-to-date knowledge of cooling technologies and trends.
  • Design, execute, and analyze experimental setups to validate thermal models and cooling system performance.
  • Coaching and mentoring engineering and sites on liquid cooling technologies and its implementation

The experience we're looking to add to our team:

  • Bachelor's or advanced degree in Mechanical Engineering, Thermal Engineering.
  • System Integration processes and Liquid Cooling infrastructure
  • Strong customer and Program management experience with Tier 1 OEMs
  • Experience in NPI, New Product launch, automation, and process management
  • SMT, Fixture Designs, Assembly & Test, Backend Processes, Testing and Equipment Engineering
  • Manufacturing supporting NPI and Product Transfers
  • Exhibits strong leadership abilities to guide and mentor team members effectively
  • Typically requires a minimum of 6 -8 years of experience modelling liquid cooling or equivalent
  • Server architecture
  • Data Center Cooling Systems, DFMEA and DFM. preferred
  • CDF modelling liquid cooling. preferred
  • High-density liquid cooling (HDLC) system design preferred

KR13

What you'll receive for the great work you provide:

  • Full range of medical, dental, and vision plans
  • Life Insurance
  • Short-term and Long-term Disability
  • Matching 401(k) Contributions
  • Vacation and Paid Sick Time
  • Tuition Reimbursement
Job CategoryProduction Engineering

Is Sponsorship Available?

NoFlex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email accessibility@flex.com and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).
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About Flex Personnel

Sourced by ZipRecruiter

The Flex Team is made up of Staffing Industry experts committed to serving the needs of businesses and workers by bringing people together. We are guided by our Core values Integrity, Courtesy, and Respect. At Flex we bring Businesses and People together. We carefully assess both the needs of our Business clients and the complete profiles of each candidate, and then make the connections we believe will be most mutually beneficial. With offices in select markets throughout the Country, We are continually expanding our industry reach nationwide.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Dallas, TX, US

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