Barney trained in Medicine at Guy’s, King’s and St Thomas’ hospital, London. He followed a career in paediatric medicine, training in the West-Midlands, sub-specialising in paediatric critical care. During his training he followed a parallel academic and research training programme, undertaking an MSc at Cardiff University and a PhD in Medicine at Warwick.
His post-doctoral research programme continued at the University of Birmingham whilst working since 2012 as a consultant in the Paediatric Intensive Care at Birmingham Children’s Hospital. In 2017 he commenced a five year, NIHR funded Clinician Scientist Fellowship continuing his research into prognosis and treatment of children after cardiac arrest. In 2023 he was appointed as Associate Professor and Faculty at the Department of Critical Care, Hospital for Sick Children, Toronto, Canada.