Kunal Talwar works on various aspects of theoretical computer science. In recent years, he has worked in the areas of differential privacy, approximation algorithms, sketching algorithms, data structures, and randomized algorithms. He completed his B.Tech. at the Indian Institute of Technology at Delhi in 2000, and his PhD at UC Berkeley in 2004. After spending a year as a postdoc at Microsoft Research in Redmond, Washington, he has been at Microsoft Research Silicon Valley, where he was a Senior Researcher when the lab was closed in September 2014.