Chari Toloumis has been leading the Buildings Business Unit of Siemens Greece since October 2024, while also holding the title of Head of Digital & Software Business Unit Buildings Italy. Previously, he served as Head of Digital Solutions and Key Account Manager, with a primary responsibility for developing digital solutions and innovation ecosystems for the Siemens Xcelerator business platform. For 15 years, he worked at Siemens Switzerland, with his last position being Head of Software Products. He holds an International Executive MBA from the University of St. Gallen, an MSc in Energy Engineering from ETH Zurich, and a Diploma in Electrical and Computer Engineering from the University of Patras.