James’ career began in 1991 when he joined Benetton F1 as a Junior Aerodynamic Designer after graduating from the University of Cambridge.
Just two years later, he became Head of Aerodynamics at Larrousse before returning to Benetton, where he contributed to Michael Schumacher’s first Drivers’ Championship in 1994 and the team’s double title success in 1995.
Promoted to Head of Aerodynamics in 1997, James moved to Ferrari in 1999 as Trackside Aerodynamicist, playing a key role in an era of dominance that saw six consecutive Constructors’ Championships from 1999 to 2004.
After six years in Maranello, he returned to Enstone as Deputy Technical Director for Renault, helping secure back-to-back titles in 2005 and 2006 with Fernando Alonso.
In 2009, James became Technical Director, guiding the team through its transition to Lotus and celebrating a return to victory at the 2012 Abu Dhabi Grand Prix with Kimi Räikkönen.
In 2013, James re-joined Ferrari as Technical Director, where his leadership helped the team rebound in 2015 with three wins for Sebastian Vettel.
He left Ferrari in 2016 and joined Mercedes in 2017 as Technical Director, contributing to five Constructors’ Championships and four Drivers’ titles during a dominant period for the team.
Midway through 2021, James transitioned to the newly created role of Chief Technical Officer before returning as Technical Director in April 2023.