Principal Thermal Engineer

We are seeking a skilled engineer or scientist to lead the deployment and management of direct-to-chip liquid cooling technology with our external manufacturing partners. The successful candidate will ensure robust technical implementation, drive quality standards, oversee supplier collaboration, and support the innovation of advanced thermal management solutions.

Responsibilities

• Serve as the technical lead for direct-to-chip liquid cooling systems with a focus on collaboration across external manufacturers and internal stakeholders.
• Develop and maintain technical specifications and requirements for direct-to-chip cooling solutions.
• Oversee the qualification, integration, and mass production of liquid cooling systems at external manufacturing sites, ensuring adherence to company quality, safety, and performance standards.
• Drive joint problem-solving efforts on yield, performance, and manufacturing challenges related to liquid cooling technologies.
• Review and validate engineering designs, ensuring alignment with system-level requirements (mechanical, fluid, thermal, and electrical interfaces).
• Review and audit supplier manufacturing processes for compliance with company and industry regulations.
• Support the continuous improvement of cooling designs based on manufacturing feedback and field data.
• Prepare, review, and maintain documentation, including test plans, technical reports, process control documents, and validation results.
• Provide technical training and guidance to manufacturing partners as needed.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering, Chemical Engineering, Materials Science, or a closely related field.
• 5+ years of experience in thermal systems engineering, preferably with direct experience in liquid cooling for high-performance computing or data centers.
• Hands-on experience with manufacturing processes, supplier management, and technology transfer.
• Strong understanding of liquid cooling–specific reliability, safety, and performance challenges.
• Demonstrated experience in supplier development, process audit, and technical troubleshooting.
• Excellent verbal and written communication skills; able to translate complex technical information for varied audiences.
• Ability to travel domestically and internationally to manufacturing sites as required.
• Experience with cold plate cooling systems.
• Familiarity with industry standards, guidelines, and environmental compliance for data center cooling (ASHRAE, OCP, RoHS, etc).
• Prior exposure to scaling cooling systems from lab/POC to mass production.
• Exposure and experience with coolant chemistries and technologies.

Certain U.S.-based or U.S. customer/client-facing roles may require compliance with applicable immunization, occupational health mandates, and/or drug testing.

Pay

Hiring range in USD: $114,600 - $234,600 per year. May be eligible for bonus, equity, and compensation deferral.

Benefits

• Medical, dental, and vision insurance, including expert medical opinion
• Short-term and long-term disability insurance
• Life insurance and AD&D
• Supplemental life insurance (Employee/Spouse/Child)
• Health care and dependent care Flexible Spending Accounts
• Pre-tax commuter and parking benefits
• 401(k) Savings and Investment Plan with company match
• Paid time off: Flexible Vacation for salaried employees; accrued vacation for others (13 days annually for the first three years, 18 days annually thereafter, prorated for part-time)
• 11 paid holidays
• Paid sick leave: 72 hours upon hire, refreshes annually, carries over up to 112 hours
• Paid parental leave
• Adoption assistance
• Employee Stock Purchase Plan
• Financial planning and group legal services
• Voluntary benefits including auto, homeowner, and pet insurance