Prof Mason qualified from the University of Wales College of Medicine, completing his orthopaedic training in Wales before moving to Liverpool as a consultant specialising in Major trauma and foot and ankle surgery. Before joining Liverpool University Hospital NHS Foundation Trust, Prof Mason completed British Orthopaedic Foot and Ankle Society travelling fellowships in the University of Utah, Salt Lake City, America and Carl Gustav Carus University, Dresden, Germany. In Liverpool, Prof Mason obtained the British Orthopaedic Foot and Ankle Society Gold Fellowship Award. Prof Mason's pioneering research has become nationally and internationally recognised, winning over 30 regional, national and international prizes in the last 10 years. He has been awarded the Hunterian Professorship from the Royal college of surgeons in 2020 for his work on ankle fractures, the Robert Jones gold medal and Association prize in 2017 for his work on the evolution of the foot and the Jaques Duparc prize from EFORT for his work on discovery of a new foot ligament. Prof Mason has won the Chan Chen memorial prize, the highest award from the British Orthopaedic Foot and Ankle Society on 4 separate occasions. In 2023, Prof Mason achieved a National Clinical Impact Award Level 1 for contribution to safe and high-quality care and improvement of NHS services. Prof Mason is a Honorary Associate Professor at the University of Liverpool, where he is the undergraduate lead in Musculoskeletal disease and Orthopaedics for the School of Medicine. Furthermore, Prof Mason is a respected National educator, as an invited faculty member for courses by the British Orthopaedic Association, Royal College of Surgeons , AO, Royal Society of Medicine and British Orthopaedic Foot and Ankle Society. Prof Mason is a Senior Fellow of the Higher Education Authority. Prof Mason is the current Clinical Practice Committee Chair, and takes a seat on the council for the British Orthopaedic Foot and Ankle Society. He was previously the Outcomes Committee chair , taking responsibility for the National foot and ankle registry.