an experimental particle physicist with a career spanning scientific research, academic teaching, science communication, international relations and management at CERN and at several universities. He is a Senior Physicist and Deputy Head of International Relations in CERN’s Director-General Unit and a Visiting Professor in Particle and Accelerator Physics at the University of Oxford. In 1998 he joined the CMS Collaboration at CERN’s Large Hadron Collider (LHC), one of the two experiments that have announced the discovery of the Higgs boson, and for the period 2005-2008 he was Head of the LHC Experimental Areas. As a result of his research, he has co-authored a large number of scientific papers in refereed journals together with international collaborators.Emmanuel Tsesmelis has also been providing strategic advice to CERN Directors-General on international relations of the Organization. In this capacity, he has been responsible for bringing into collaboration with CERN scientists from countries that are in the process of developing their particle physics communities. He also lectures in physics and contributes to public engagement events in science, technology and innovation, most notably related to CERN’s Non-Member State Summer Student Programme and High School Teacher Programme as well as to public science events internationally.