Dr. Maillard earned a medical degree from the University of Lausanne, Switzerland and a PhD degree in immunology from the Swiss Academy of Medical Sciences. He trained in internal medicine and hematology at the Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, followed by Hematology-Oncology fellowship training at the University of Pennsylvania (2001-2004). After additional work at Penn as an Instructor of Medicine, he joined the University of Michigan as an Assistant Professor in 2007. There, he built an independent research program studying new molecular mechanisms regulating T cell alloreactivity and hematopoietic stem cell biology. Dr. Maillard was promoted to the rank of Associate Professor and elected to the American Society of Clinical Investigation in 2013. In 2018, he was recruited to the University of Pennsylvania as Professor of Medicine and Vice-Chief for Research in the Division of Hematology-Oncology. Dr. Maillard serves on multiple study sections for LLS, ASH, the Damon Runyon Cancer Research Foundation and the NIH, including as a current standing member in the Transplantation, Tolerance and Tumor Immunology study section.