Lead Thermal Systems Engineer

We are seeking a highly skilled Thermal Systems Engineer to lead the design, analysis, and validation of advanced cooling systems for high-density data center environments. This role focuses on ensuring system reliability, thermal performance, and compliance with industry standards through rigorous testing and certification processes.

• Design and optimize thermal systems for high-power-density environments, ensuring robust heat transfer and fluid flow performance.

• Conduct detailed thermal simulations and CFD modeling to validate system behavior under varying operational conditions.

• Develop and execute comprehensive test plans including hydrostatic pressure testing, thermal cycling, vibration, and shock testing in accordance with standards such as ASME, IEC, and ASTM.

• Collaborate with cross-functional teams to ensure mechanical integrity, material compatibility, and corrosion resistance of wetted components.

• Analyze field data and lab results to drive continuous improvement in system reliability and efficiency.

• Support regulatory compliance efforts including safety, EMC, and environmental certifications (e.g., UL, CE, RoHS, REACH).

• Author technical documentation including test protocols, certification reports, and installation guidelines.

• Interface with external testing labs and internal stakeholders to coordinate validation activities and ensure timely delivery of certified systems.

• Degree or advanced degree in Mechanical Engineering, Thermal Engineering, or a related technical discipline.

  • BS with 10 years of relevant experience

  • MS with 7 years of relevant experience

  • PhD with 5 years of relevant experience

• Proficiency in CFD and thermal modeling tools (e.g., ANSYS, FloTHERM, Solid Works Flow Simulation).

• Strong understanding of fluid dynamics, thermodynamics, and heat transfer principles.

• Experience with instrumentation for temperature, pressure, and flow measurement.

• Familiarity with testing standards such as ASME, ASTM, IEC, and UL.

• No Immigration Sponsorship available for this role

• Experience in data center or mission‑critical cooling systems.

• Knowledge of two‑phase cooling and refrigeration systems.

• Background in automated testing systems and test bench development.

• Experience with regulatory and environmental compliance (e.g., RoHS, REACH, WEEE).

• Familiarity with reliability engineering tools and techniques (e.g., FMEA)

The base salary range for this position is $ - $. This position is eligible for annual bonus pay based on performance, per plan terms. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.

Ecolab strives to provide comprehensive and market‑competitive benefits to meet the needs of our associates and their families.  to see our benefits.

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To meet customer requirements and comply with local or state regulations, applicants for certain customer‑facing roles may need to:

• Undergo additional background screens and/or drug/alcohol testing for customer credentialing.

• Be fully vaccinated for COVID‑19, including a booster if eligible, unless a religious or medical accommodation is requested by the applicant and approved by Ecolab.

Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.

At Ecolab, we believe the best teams are inclusive. We are on a journey to create a workplace where every associate can grow and achieve their best. We are committed to fair and equal treatment of associates and applicants and recruit, hire,…