Sanjay Ghemawat (born 1966) is an Indian American computer scientist and software engineer. He is currently a Senior Fellow at Google in the Systems Infrastructure Group. Ghemawat’s work at Google, much of it in close collaboration with Jeff Dean, has included big data processing model MapReduce, the Google File System, and databases Bigtable and Spanner. Wired have described him as one of the “most important software engineers of the internet age”.
Ghemawat studied at Cornell University and the Massachusetts Institute of Technology (MIT). He obtained a PhD from MIT in 1995, with a dissertation titled, The Modified Object Buffer: A Storage Management Technique for Object-Oriented Databases. His advisorswere Barbara Liskov and Frans Kaashoek.
Before joining Google, Ghemawat worked at the DEC Systems Research Center. There he began his longtime collaboration with Jeff Dean, who worked at another DEC research lab nearby. Their work at DEC included a Java compiler and a system profiling tool.