William Kramer is the director of deputy project manager for the sustained-petascale Blue Waters project at Illinois' National Center for Supercomputing Applications (NCSA) and the director of the NCSA @Scale Program Office. Formerly, he was the general manager of the Department of Energy's National Energy Research Scientific Computing Center (NERSC). At NERSC and earlier, Kramer led the acquisition, testing, and introduction of more than 20 high-performance computing and storage systems. He was instrumental in managing the paradigm shift from vector computing to massively parallel systems and was one of the primary contributors to LBNL's Science Driven Computer Architecture initiative. He was named one of HPCWire's "People to Watch" in 2005 and 2012 and chaired SC05. At NASA Ames, he put the world's first UNIX supercomputer into production.