Sayan is a Principal Engineer and Machine Learning Scientist in CNTK team at Microsoft. He has published and commercialized cutting edge computer vision and machine learning technology to big data problems applied to medical imaging, neuroscience, computational advertising and social network domains. Prior to joining Microsoft, he worked at Allen Institute for Brain Science. He has been a consultant to several startups and principal investigator on several US National Institutes of Health (NIH) grants. He is a faculty at the University of Washington for 15 years and is Affiliate Professor in CSE at the Indian Institute of Technology, Kharagpur, India for over 4 years. He has taught several courses (namely Image Computing Systems, Information Retrieval, Social Networks, Machine Learning) at the undergraduate and graduate level. He has served in committees of several doctoral and masters students.