Previously, Valerio was a Group Leader and Project Leader in the Center for Applied Scientific Computing at the Lawrence Livermore National Laboratory, and Adjunct Professor Computer Science at the University of California Davis. Prior to his CASC tenure, he was a senior research associate at the University of Texas at Austin, Center for Computational Visualization, CS and TICAM Departments. Valerio earned a Ph.D. in computer science at Purdue University in May 2000, and a EE Laurea (Master), at the University “La Sapienza” in Roma, Italy, in December 1993, as a member of the Geometric Computing Group.