Sauber have bolstered their technical staff by appointing Mark Smith as new technical director.
Smith joins the Hinwil-based squad with a lot of experience as he has previously worked for Jordan (2004-2005), Red Bull (2005-2008), Force India (2010-2011) and Caterham (2011-2014).
He will effectively replace James Key, who left Sauber ahead of the 2012 season, and will he will take on responsibility for tasks that "overlaps" the technical committee.
"After talks with the technical committee, we have searched for a Technical Director for the Sauber F1 Team – and found Mark," team principal Monisha Kaltenborn said. "Mark Smith is an engineer with a lot of experience in Formula One.
"Above all, he knows the environment in which privateer teams must work and the challenges that are there – and how important it is to keep calm and keep things in perspective. With us he finds technical possibilities on a very high level. We wish Mark a good start for which he has our full support."
Smith left Caterham in May last year, but he said he had no hesitation in taking up the position with Sauber.
"When I saw the facilities for the first time in Hinwil, I immediately realised the possibilities I would have," Smith said.
"The windtunnel, the supercomputer and the machine shop – everything is on a very high technical level. And not to forget the competence of the team.
"These facts were compelling reasons and arguments for me changing to Hinwil.
"The potential of Sauber is enormous, which is not self-evident in a constantly changing Formula 1 world.
"The factory in Hinwil has all the requirements to be competitive in Formula 1."