Ferrari has confirmed that James Allison has left the team by mutual consent, three years after he joined for a second stint at the Italian operation.
Allison re-joined mid-2013, having spent five years with Ferrari in the early 2000s, either side of spelles with Benetton and Renault.
"During the years I spent at Ferrari, at two different stages and covering different roles, I could get to know and appreciate the value of the team and of the people, women and men, which are part of it," he said.
"I want to thank them all for the great professional and human experience we shared. I wish everybody a happy future with lots of success."
Ferrari has announced that engine guru Mattia Binotto will occupy the role of Chief Technical Officer.