Mercedes have confirmed speculation that they have snapped up former Ferrari technical boss James Allison.
Allison left Ferrari and Italy last year, following the sudden death of his UK-domiciled wife.
"I am very excited to be getting back to work after this time away from the sport," he said.
Allison's appointment at Brackley-based Mercedes comes after Paddy Lowe's recent switch to Williams.
The 48-year-old's tenure will begin on March 1.