Thermofluid Systems Test Engineer

At JetCool a Flex company were at the forefront of liquid cooling innovation delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose our teams are pushing the limits of whats possible and tackling complex challenges.

A career at JetCool offers the opportunity to make a real impact by helping build smarter more sustainable data were not just advancing technology were redefining cooling standards to create a more sustainable tomorrow.

Job Summary

To support our extraordinary teams who build great products and contribute to our growth were looking to add a Thermofluid Systems Test Engineer located in Littleton MA.

Reporting to the Mechanical Development Associate Principal Engineer the Thermofluid Systems Test Engineer we are seeking a Thermofluid Systems Test Engineer with strong hands on expertise in thermofluid systems to join our engineering team. This is an execution focused role with clear ownership from early development through qualification and product release.

What a typical day looks like:

• Own handson testing of Coolant Distribution Units (CDUs) and related subsystems including pumps heat exchangers tubing valves and fluids.
• Design build instrument and operate automated thermo-fluid test stands to characterize flow pressure drop thermal performance and system behavior.
• Develop and maintain PLCbased controls data acquisition and automation for repeatable longduration and qualification testing.
• Execute test plans analyze results and deliver clear testdriven feedback to design and systems engineering teams.
• Support design reviews and product decisions by translating test data into actionable insights and risk assessments.
• Improve lab capability by identifying gaps in tooling instrumentation controls and test coverage for CDU development and validation.
• Support troubleshooting and rootcause investigations across development qualification production and field issues related to thermo-fluid performance.

The experience were looking to add to our team:

• 7 years of handson experience testing and qualifying thermo-fluid systems in data center cooling automotive medical or industrial environments including direct experience with CDUs or comparable systems.
• Strong practical understanding of fluid dynamics thermodynamics and heat transfer applied to test execution and data interpretation.
• Demonstrated experience leading performance and qualification testing including flow pressure thermal efficiency durability and faultmode testing.
• Proven ability to design build instrument and commission custom thermo-fluid test stands with pumps valves heat exchangers sensors and safety interlocks.
• Experience developing and executing structured test plans qualification matrices and acceptance criteria with ownership of test execution and results.
• Strong data acquisition and analysis skills including sensor selection calibration data logging and postprocessing.
• Proficiency with PLCbased controls and test automation including modifying control logic for automated sequences and safe system operation.
• Demonstrated ability to troubleshoot complex systemlevel issues through handson testing and structured rootcause analysis.
• Ability to clearly document and communicate test plans results failures and margin assessments to engineering teams and senior stakeholders

BO18

What youll 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 Category

Is Sponsorship Available

JetCool 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. Were happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email and well 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 JetCool you must complete the application process first).