Sauber has replaced the long-serving Giampaolo Dall'Ara as head of track engineering with Red Bull's Timothy Maylon.
Dall'Ara joined Sauber in 2000 and progressed through the ranks to head of engineering in 2009 when the team was owned by BMW. He retained the role after the German manufactuer's departure from the sport at the end of that season.
The Italian is set to leave Sauber to join BMW in DTM and the team has payed tribute to his long service.
"Giampaolo Dall'Ara has decided to leave our company after more than 15 years of service to pursue another challenge," a Sauber spokesperson confirmed. "We would like to thank Giampaolo for his dedicated and highly valued collaboration over all these years. We wish him all the best for the future."
Dall'Ara is being replaced by Red Bull's Tim Maylon, who joined the outfit when it was known as Jaguar in 2004. He remained an assistant race engineer when the team became Red Bull in 2005 and was promoted to race engineer (car performance) in 2008, a role he retained until the most recent season.
Sauber is excited by the experience Maylon can bring from his experience of multiple championships.
"We are very pleased to announce Timothy Malyon as our new Head of Track Engineering. Tim has been working for more than ten years for one of the big F1 teams. We are confident that we can benefit from his long-time experience in order to improve our performance."