Sauber has announced Jan Monchaux will join the team as their new head of aerodynamics with immediate effect.
The French-German engineer has moved across from the Audi Automotive Group where he was head of vehicle engineering and aerodynamics for Audi Sport for the past five years.
Monchaux has also previously had experience working with other motorsport companies including Toyota Motorsport and Scuderia Ferrari, his previous working relationship with Italian manufacturer could prove useful to help Sauber understand the relationship between their new car and power unit.
Jörg Zander, Sauber Technical Director said: "I’m very much looking forward to the arrival of Jan Monchaux as the new Head of Aerodynamics.
"It marks an important step of a wider project that aims at strengthening and implementing the Alfa Romeo Sauber F1 Team in line with the targets and the results we want to achieve on tracks."
Sauber has targeted a return to the midfield group this year after several seasons of struggle, now bolstered by the arrival of Alfa Romeo as title sponsor and a closer relationship with Ferrari.
Charles Leclerc was the lead Sauber driver in race trim in Australia, coming home in 13th position.