Microsoft Research (summer intern 2014): I spent the summer at MSR Silicon Valley working on word embeddings.
LinkedIn (summer intern 2013): I worked on shortening the feedback loop in the Ad serving platform. The project involved working on large scale implementation of Online Logistic Regression on hadoop.
Yahoo! Labs (Full time 2008-2012): I was a Research Engineer in Yahoo! Labs (Bangalore) and worked on various projects including large scale recommendation systems, click through rates, and information corroboration.