Are you looking to push the boundaries of direct liquid cooling to enable the next generation of AI, high-performance computing, and sustainable data center technologies? Do you want to be part of the dynamic team that drives innovation at the company that leads the industry? At CoolIT, an Ecolab company, you will help develop innovative liquid cooling solutions that support Ecolab's mission of protecting vital water and other resources while advancing high-performance technologies. As a Thermal Mechanical Engineer on the Technical Solutions team, you will contribute to the transition of technologies from proof of concept through validation and readiness for product integration. You will solve technical problems related to liquid cooling for high-performance electronics, including passive cold plates, coolant distribution manifolds, and modular cooling system components. You will apply thermal, fluid, and mechanical engineering principles to develop new and mature existing technologies to meet performance, reliability, cost, and manufacturability objectives. You will handle assigned design activities, perform analysis, build and test prototypes, document results, and collaborate with manufacturing, quality, testing, and customer-facing teams. Reporting to the Technical Solutions Engineering Manager, you will play a key role in advancing innovative cooling technologies that power some of the world's most demanding computing environments. What's in it For You Generous paid time off, flex days, and a paid company-wide shutdown during the holiday season. Comprehensive benefits plan, with the majority of premiums funded by CoolIT. Company-funded 401(k) contributions to help support your long-term financial goals. Annual professional development allowance to support ongoing learning, skill development, and career growth. What You Will Do Design and mature thermal-mechanical products and concepts relating to passive cold plates, coolant distribution manifolds, and modular cooling system assemblies, with a focus on technology advancement for performance, reliability, cost, and manufacturability. Advance the maturation of liquid cooling technologies from approximately Technology Readiness Level (TRL) 3 through TRL 5, preparing technologies for successful adoption by product development teams. Create and maintain detailed CAD models, engineering drawings, bills of materials, and related documentation in accordance with company standards, GD&T practices, and DFM requirements. Conduct thermal, fluid flow, and structural analyses, and perform laboratory testing, data analysis, DFMEA, and root cause investigations to validate designs and optimize product performance. Provide technical support for customer programs requiring technology development when solutions have not yet achieved the required readiness level. Work on challenging engineering problems involving heat transfer, fluid dynamics, mechanical design, simulation, and product validation within tight timelines. Serve as a technical representative at customer sites by providing hands-on engineering support, gathering customer and application requirements, identifying emerging product and technology trends, and helping transition early-stage liquid cooling technologies into customer programs. Position Details Travel: Frequent travel to customer sites within the Bay Area. Occasional travel to headquarters in Calgary, AB, Canada. International travel as required based on business needs. Candidate must reside in the Bay Area Work location: Hybrid Work week and shift: Full-time, standard business hours Minimum Qualifications Bachelor's degree in Mechanical Engineering or a related engineering discipline. Demonstrated experience applying heat transfer and fluid mechanics principles to thermal design, including the use of computational fluid dynamics (CFD) models to evaluate fluid flow, pressure drop, and heat transfer. Strong understanding of core mechanical engineering principles, including: Geometric Dimensioning & Tolerancing (GD&T) Tolerance stack-up and statistical tolerance analysis Mechanism design and analysis Finite Element Analysis (FEA) Design for Manufacturing (DFM) Design Failure Mode and Effects Analysis (DFMEA) Engineering testing, validation, and root cause analysis Proficient in CAD and simulation tools (e.g., SolidWorks) to create production-ready models and drawings, perform analyses, and optimize design performance. CoolIT is committed to providing reasonable accommodation to qualified individuals with a disability. Preferred Qualifications Minimum of 7 years of experience in thermal-mechanical product development. Proven experience designing mechanical components and assemblies for mass production using multiple manufacturing processes. Professional Engineer (P.Eng. / P.E.) designation or equivalent professional accreditation. Master’s degree or other advanced training in Mechanical Engineering, Thermal Mechanical Engineering specializing in Fluid Dynamics, or a related field. Annual or Hourly Compensation Range: $150,000-$200,000 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. Benefits Ecolab provides the following benefits: medical, dental, vision, life insurance, accident insurance, critical illness insurance, hospital indemnity insurance, auto insurance, home insurance, pet insurance, identity theft protection, short-term and long-term disability, 401k, pension plans, retirement health care benefits, short-term incentives, vacation (12 days), holidays, parental leave, employee stock purchase plans (Full-Time Associates), discount on day care services and caregiver services, adoption assistance, group legal services, employee assistance program, employee discount program, and education assistance program, on-Site childcare and fitness facilities may be available at select Ecolab locations. Click here for additional benefits information. If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here. Potential Customer Requirements Notice 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. Americans with Disabilities Act (ADA) 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. A trusted partner at nearly three million customer locations, Ecolab (NYSE:ECL) is a global sustainability leader offering water, hygiene and infection prevention solutions and services that protect people and the resources vital to life. Building on a century of innovation, with an annual sales of $15 billion and more than 48,000 associates, Ecolab delivers comprehensive science-based solutions, data-driven insights and world-class service to advance food safety, maintain clean and safe environments, and optimize water and energy use, and improve operational efficiencies and sustainability for customers in the food, healthcare, life sciences, hospitality and industrial markets in more than 170 countries around the world. When you come to work at Ecolab, you get to take on some of the world’s most meaningful challenges and have the opportunity to learn and grow, shape your career, make an impact and quickly see the importance of your work.   For more Ecolab news and information, visit www.ecolab.com.

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22 Oct, 2026

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