He was previously a Project Management lecturer in the planning and implementation area of Energy Systems and Building services at Zurich University of Applied Sciences.

Stefan specializes in project development and master planning in the areas of building services engineering and energy systems, from initial project conception to construction optimization.At the same time, he has a deep understanding of the concept of energy use, and designs sustainable solutions by evaluating energy and media supply systems, focusing on intuition and efficiency.As head project planning involved in the "sports field of per river" sports center, the Swiss federal institute of technology, such as construction, at the same time as hvac professional and project leaders to participate in the novartis, head of the new solid preparation workshop production floor, yeung sum chirac company F2P2 transform and future capacity expansion projects and microbiology laboratory and so on new projects.