Eleftherios Karagiannis is an experienced professional with a diverse background in aerospace, training, and entrepreneurship. Currently serving as an Astronaut Instructor and Service Manager at Space Applications Services NV/SA for the European Space Agency, Eleftherios focuses on the development and delivery of training sessions. As a co-founder and Managing Director of Meraki Handmade Products, Eleftherios is dedicated to adapting to technological changes in the food industry while promoting eco-friendly practices. Additionally, as a Career Astronaut Candidate at AdvancingX, Eleftherios participates in extensive training for extreme environment challenges. Previous roles include project management and coordination at the Technical University of Munich, along with positions in satellite operations and surveying engineering. Eleftherios holds multiple degrees, including a Master's in Management from the Technical University of Munich and a Bachelor's in Surveying Engineering from the University of West Attica.