Guillaume began his studies at the High Preparatory School in Biology in France, from which he holds MSc in Biotechnology in 2012. He worked four years for Novartis and UCB where he worked at the Center of Expertise for Biologics in Switzerland. Currently working as a Marie Curie Early stage researcher at the University of Leiden in The Netherlands, he is completing his PhD in Tumor Immunology, researching the cellular mechanisms of effective immunotherapy in solid tumors. His focus is in bridging the most advanced single cell technologies with tumor immunology challenges to unravel the complex cellular patterns behind immunotherapy and bringing precision medicine routinely to the clinic.