Rajeev Thakur is a Computer Scientist in the Mathematics and Computer Science Division at Argonne National Laboratory. He received a Ph.D. in Computer Engineering from Syracuse University in 1995. His research interests are in the area of high-performance computing in general and high-performance networking and I/O in particular. He was a member of the MPI Forum and participated actively in the definition of the I/O part of the MPI-2 standard. He is the author of a widely used, portable implementation of MPI-IO, called ROMIO. Rajeev is also a co-author of the book "Using MPI-2: Advanced Features of the Message Passing Interface" published by MIT Press.