Liquid Cooling Engineer

Flex; Austin (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Flex is seeking a Liquid Cooling Engineer in Austin, TX to design and implement advanced liquid cooling systems for high‑density applications. You will analyze thermal performance, collaborate with cross‑functional teams, and contribute to project specifications while maintaining industry standards.

The role requires a Mechanical/Thermal Engineering background with 4‑5 years of related experience, plus involvement in NPI, automation, and process management.

Qualifications

• Bachelor’s or advanced degree in Mechanical Engineering or Thermal Engineering.
• 4–5 years of experience modelling liquid cooling or equivalent.
• Experience with System Integration and Liquid Cooling infrastructure.
• Experience with NPI, new product launch, automation, and process management.
• Manufacturing support for NPI and product transfers.

Responsibilities

• 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.
• Monitor and drive ECOs through design and release processes.
• Test and evaluate cooling systems for reliability and effectiveness.

Skills

Liquid cooling

Thermal engineering

Cross-functional collaboration

Data center cooling knowledge

DFMEA knowledge

Education

Bachelor's or higher in Mechanical/Thermal Engineering

Job description

Flex 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.

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, Axiom, with the spin planned for Q1 2027. If the intended spin occurs, this role will support Axiom, a company focused on critical digital infrastructure and delivering end-to-end power and thermal management solutions for AI data centers and other mission‑critical applications.

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

Reporting to the Director, Operations Engineering, the 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.
• 4-5 years of experience modelling liquid cooling or equivalent
• System Integration processes and Liquid Cooling infrastructure
• Experience in NPI, New Product launch, automation, and process management
• Manufacturing supporting NPI and Product Transfers
• 30% traveling availability.
• Data Center Cooling Systems, DFMEA and DFM. preferred
• CDF modelling liquid cooling. preferred
• High-density liquid cooling (HDLC) system design preferred

EA42

SS26

AA01

CH12

MS14

CC11

EC37

PF38

JS21

NV60

FL75

Flex 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 [e-mail] 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).