· Chair of the Department of Computer Science, Cornell University2024–
· Tisch University Professor of Computer Science, Cornell University2017–
· University Distinguished Teaching Professor Emeritus, University of Texas at Austin2017–
· Endowed Professorship #5 in Computer Science, University of Texas at Austin2014–2017
· Professor, University of Texas at Austin2007–2014
· Visiting Associate Professor, Cornell University2002–2003
· Associate Professor (with tenure), University of Texas at Austin2002–2007
· Visiting Assistant Professor, Cornell University1997–
· PhD in Computer Science, Cornell University1996–
· Assistant Professor, University of Texas at Austin1996–2002
· Lecturer, Cornell University1995–
· MS in Computer Science, Cornell University1994–
· Research and Teaching Assistant, Cornell University1991–1995
· Corso di Specializzazione in Physics, University of Bologna1989–
· Laurea Summa cum Laude in Physics, University of Bologna1987–