Nikolaos Liappas is a computer scientist and a researcher working on the domain of Blockchain enabled healthcare and the Pharmaledger project (H2020 & EFPIA). He is researching multi-blockchain approaches and architectures that can enable new paradigms such as: immutable supply chain, improvement of clinical trials, management of heath data, confidentiality, decentralized identities, etc. As a graduate from National and Kapodistrian University of Athens, with a Ptychion degree in Informatics and Telecommunications, he has undertaken several positions within leading organisations such as Vodafone HQ Athens and the European Commission. He has over of six years working experience in the field of computer science and biomedical engineering, in both IT companies and research laboratories, within different international environments with a career in six countries. Currently, he is a researcher working for the group of Life Supporting Technologies (LST) within the Universidad Politécnica de Madrid (UPM) under the scientific supervision of Associate Prof. María Fernanda Cabrera-Umpiérrez. He is finalizing his PhD thesis, which addressees the topic of behaviour prediction and confusions/errors in daily activities and focuses on cognitively impaired people, technological interventions, and emerging technologies in the domain of Smart Homes. Recently, he completed a Marie Sklodowska-Curie EU H2020 fellowship within a network of young researchers in the field of biomedical engineering, informatics and health and has produced excellent results in its 3-year lifespan and has been recognized among the top Marie Curie productive projects with many outcomes and publications (ACROSSING H2020). Furthermore, he has been working and researching in the large-scale ACTIVAGE H2020 project and more specifically he is investigating emerging technologies such as skeleton trackers and gamification techniques that can enhance and motivate the physical activities of elderly and improve their balance.