Sauber has confirmed that Mark Smith has been appointed as the squad's new technical director.
Smith has extensive experience in Formula 1, having occupied similar roles with Jordan, Force India, Red Bull and most recently Caterham.
Smith will begin his duties on July 13 and will fit into the existing structure at the Swiss team.
"When I saw the facilities for the first time in Hinwil, I immediately realised the possibilities I would have," Smith said.
"The wind tunnel, 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."