Sr. Liquid Cooling Engineer

Reposted 24 Days Ago
Be an Early Applicant
Austin, TX, USA
In-Office
6-8 Annually
Senior level
Hardware • Other • Appliances
The Role
The Sr. Liquid Cooling Engineer designs and implements liquid cooling systems, optimizes thermal management, collaborates with teams, tests systems, and mentors others.
Summary Generated by Built In
Job Posting Start Date 03-31-2026 Job Posting End Date 05-29-2026

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.

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?

No

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 [email protected] 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).

Skills Required

  • Bachelor's or advanced degree in Mechanical Engineering, Thermal Engineering
  • Minimum of 6-8 years of experience modelling liquid cooling
  • Strong customer and program management experience with Tier 1 OEMs
  • Experience in NPI, New Product launch, automation, and process management
  • High-density liquid cooling system design

Flex Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Flex and has not been reviewed or approved by Flex.

  • Healthcare Strength Health, dental, and vision coverage begin on day one with options for dependents, alongside disability, life, mental‑health resources, and fertility/adoption and gender transition support. Plan choice and wellness programs indicate a robust healthcare offering.
  • Leave & Time Off Breadth Paid holidays, paid sick time, company‑wide shutdown days, and in some cases unlimited PTO point to extensive time‑off provisions. Flexible and hybrid work arrangements in certain teams further support work‑life balance.
  • Strong & Reliable Incentives Quarterly bonus checks and performance bonuses supplement base pay, and some roles can earn overtime at 1.5x. These elements strengthen the reliability of cash incentives.

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The Company
HQ: Austin, Texas
52,479 Employees
Year Founded: 1969

What We Do

We’re the manufacturing partner of choice that helps a diverse customer base design and build products that improve the world. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.

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