
Manager - Pre-Construction Services, Hydro Building Systems Middle East
Stefan Ernler is a highly experienced façade and building envelope specialist with more than 40 years of expertise in façade engineering, fenestration, and architectural systems. As Manager, Pre-Construction Services – Middle East at Hydro Building Systems / TECHNAL, he leads technical strategy, project support, and the development of innovative building envelope solutions across the region.
Throughout his career, Stefan has held senior technical and leadership positions with internationally recognized organizations including Hydro Building Systems, HUECK, Lindner Fassaden, and Gartner/Permasteelisa. His experience spans façade engineering, curtain wall systems, technical product development, project management, and the delivery of complex building envelope solutions for landmark projects across Europe and the Middle East.
A certified Project Manager, educated at the Steinbeis Transfer Center for Technology and Management and IHK Bayreuth, Stefan is recognized for combining deep technical expertise with practical project leadership. He has played a key role in advancing façade technologies, bespoke architectural solutions, and high-performance building systems that meet the evolving demands of modern architecture, sustainability, and engineering excellence.
At Hydro Building Systems Middle East, Stefan works closely with architects, consultants, developers, and contractors to deliver innovative, technically sophisticated, and sustainable façade solutions that support the next generation of high-performance buildings.

