Markos Hadjiminas studied at Bocconi University from 2019 to 2023, where he earned a BSc in Economics, Management and Computer Science (BEMACS), specializing in Data Science. Since 2024, he has held the position of Head of Artificial Intelligence at EFA GROUP, where he leads the Group’s AI initiatives, including the development of its internal operations EFA GROUP platform. Since 2025, he has also been the Founder and CEO of STHENOS AI, a Greek sovereign artificial intelligence company operating within EFA GROUP. The company employs more than 30 people, primarily engineers, and develops integrated solutions in AI-driven decision-making, quantum technologies, critical infrastructure and data centers, with a particular focus on defense and dual-use applications. He is also a member of ESETEK (National Council for Research, Technology and Innovation).