Former Ferrari head of aerodynamics John Iley has joined McLaren in the same role, a spokesman for the British-based Formula One team said on Wednesday.
The Briton, who left Ferrari last July after the Italian team's 2009 car was eclipsed by eventual champions Brawn GP and Red Bull, took up his new job at the start of the year.
Ferrari's new chief aerodynamicist is Marco de Luca while Nikolas Tombazis, who returned to the Italian team from McLaren in 2006, is chief designer.
Mercedes-powered McLaren, fined a record $100 million in 2007 after a spy controversy involving leaked Ferrari technical data, have reigning world champion Jenson Button and 2008 champion Lewis Hamilton as their drivers.
