Ron A. Oldfield is a senior member of the technical staff at Sandia National Laboratories in Albuquerque, NM. He received the B.Sc. in computer science from the University of New Mexico in 1993. From 1993 to 1997, he worked in the computational sciences department of Sandia National Laboratories, where he specialized in seismic research and parallel I/O. He was the primary developer for the GONII-SSD (Gas and Oil National Information Infrastructure--Synthetic Seismic Dataset) project and a co-developer for the R&D 100 award winning project "Salvo", a project to develop a 3D finite-difference prestack-depth migration algorithm for massively parallel architectures. From 1997 to 2003 he attended graduate school at Dartmouth college and received his Ph.D. in June, 2003. In September of 2003, he returned to Sandia to work in the Scalable Computing Systems department. He currently leads the Lightweight File System project and the testing and integration effort of the SciDAC Scalable Systems Software project. His research interests include parallel and distributed computing, parallel I/O, and mobile computing.