Rob Pieters is a full professor in Pediatric Oncology at the University of Utrecht. He was chair of Pediatric Oncology/Hematology at the Erasmus MC-Sophia Children's Hospital in Rotterdam from 1999-2014 and a full professor in Pediatric Oncology at Erasmus University Rotterdam from 2000-2017. He is initiator and one of the founders of the Princess Máxima Center for Pediatric Oncology in Utrecht, the Netherlands. This national center has merged all expertise from all former 7 childhood cancer centers in the Netherlands, thereby establishing the largest center in Europe for treatment and research of childhood cancer. He was Chief Medical Officer (CMO) and co-CEO of the Princess Máxima Center from 2013-2025. Since 1 January 2025, he is Chief Máxima International and part of the Executive Committee of the Princess Máxima Center. His focus is on strategic international collaborations aiming to improve survival rates and quality of survival and to overcome inequities in access to care and research for children with cancer worldwide. Rob is president of the International Society of Paediatric Oncology (SIOP), member of the EU Cancer Mission Board, and editor-in-chief of the European Journal of Cancer- Pediatric Oncology. His research focusses on the development of personalized therapies for childhood acute lymphoblastic leukemia (ALL). He published >700 peer-reviewed scientific papers, gave >400 invited lectures and has supervised >65 PhD students. In 2018 he received a Royal knighthood decoration as Officer in the Order of Oranje Nassau for his achievements for children with cancer.