James is a Professor of Exercise Metabolism at Liverpool John Moores University where he has authored over 200 research publications related to sports physiology and nutrition. James has also worked in a number of performance support related roles across both high-performance sport and industry. From 2010-2015, he was the performance nutritionist to Liverpool FC before taking up the position of Nutrition and Physical Performance Lead for Team Sky between 2015 and 2019. In this role, he was responsible for the performance nutrition strategy for 5 consecutive Tour de France wins. Since 2019, James has also been the Director of Performance Solutions for Science in Sport (SiS) where he leads the Performance Solutions programme that encompasses the strategic delivery of bespoke performance solutions and innovation for SiS and their elite partners. Since 2022, James also advises INEOS Sport, where he has led the creation and delivery of the INEOS X programme that aims to share knowledge and best practice on leadership, coaching, and performance support across the INEOS Sport portfolio, that includes Manchester United FC, the INEOS Grenadiers cycling team, the All Blacks Rugby team and Mercedes Formula 1 team. He is also a Performance Mentor for the FA Premier League.