The news reinforces the technical leadership of the team during a period of renewal before the major rule changes for 2026.
James joined the team in 2017 as Technical Director, overseeing a prolonged period of success culminating in four Drivers’ titles and five consecutive Constructors’ Championships.
After a stint as Chief Technical Officer, responsible for longer term strategy and the INEOS Britannia America’s Cup project, the 55-year-old returned to a more frontline role as Technical Director in April 2023.
“F1 has brought me a lot of good fortune, but none greater than answering Toto’s call to join Mercedes in 2017,” James said.
“It is a great privilege to continue this adventure, working alongside brilliant colleagues and fighting together for championship success.”