At Kelvion, our mission is to lead the industrial transformation by championing innovation and sustainability. From optimising data centres and advancing hydrogen production to revolutionising refrigeration and HVAC systems, our mission-critical thermal solutions empower industries around the globe. United as “One Kelvion,” our global team delivers innovative solutions that drive customer success and support a sustainable future. Together, We Shape the Future Your responsibilities Develop thermohydraulic models and algorithms for sizing heat exchangers Determine characteristic properties of heat exchangers based on thermo-hydraulic measurements as input data for your models Support development projects with your expertise in thermodynamics Design and evaluate experiments Suggest improvements to our lab capabilities targeting better precision of your calculations Your profile PhD in physics, mechanical or chemical engineering, with profound knowledge in thermodynamics, heat transfer and two-phase processes Experience with plate heat exchangers is a big plus Structured approach to resolving technical challenges effectively Programming experience in MathCad or Matlab, preferably also C++/C# Fluent in English, C-level German language skills Readiness for limited travel At Kelvion we thrive on collaboration, embracing diversity of thought, and valuing every voice. Within Kelvion creativity shines because people are listened to, their contributions recognised, and their ideas welcomed. Our flexible approach to the way we work places people’s health and satisfaction as a priority, enhancing engagement and fostering career opportunities. We empower engaged individuals to grow, progress and carve their own paths within the company.