McLaren have confirmed that Williams technical director Sam Michael will join their team from next season as sporting director.
Michael, who has spent 11 years with Williams, will leave the team after next weekend's Singapore Grand Prix.
"Being a racer my whole life, I know McLaren is one of the all-time greats of Formula One," said Michael.
"I already know and respect many of the team's senior technical management figures, and becoming a member of that excellent working unit was one of the prime attractions of this new position.
"Equally, for some time I've closely observed and greatly admired both Lewis [Hamilton] and Jenson [Button] as grade-one drivers, and therefore regard it as an enormous privilege to be able to work with both of them."
As sporting director, Michael will be responsible for taking specific responsibility for the development and management of the team's trackside operations.