Rajan is Vice President of Engineering for the Search Intelligence team, whose mission is to instantly answer any question, no matter how complex or unique and effortlessly explore any interest. His previous contributions include co-founding Lens, Gboard and Google Podcasts, and leading teams responsible for Google's Search algorithm, evaluation processes, and metrics that continue to enhance Search today.

He received a Ph.D. from the Biostatistics department at Emory University, where he developed statistical methods to analyze the functional connectivity of the brain using functional magnetic resonance imaging (fMRI) data.