Between Sofia Kovalevskaya and Maxim Kontsevich, who held a faculty position at more universities?
Sofia Kovalevskaya:  She was the first woman appointed to a full professorship in Northern Europe and was also one of the first women to work for a scientific journal as an editor. Maxim Kontsevich: Maxim Lvovich Kontsevich (Russian: Макси́м Льво́вич Конце́вич ;   ; born 25 August 1964) is a Russian and French mathematician. Maxim Kontsevich:  He is a professor at the Institut des Hautes Études Scientifiques and a distinguished professor at the University of Miami.
Maxim Lvovich Kontsevich