2009-presentSystems Scientist, Language Technologies Institute, Computer Science Department, Carnegie Mellon University (CMU)
2003-2009CEO, Haikya Corporation, 51 Water Street, Watertown, MA 02472.
Company engaged in R&D and commercialization of state-of-the art speech recognition technologies
2006-2009Adjunct Faculty, Language Technologies Institute, Computer Science Department, Carnegie Mellon University (CMU)
2007-2009Senior Research Scientist, Johns Hopkins University Human Language Technology Center of Excellence (COE), Stieff Building / 810 Wyman Park Drive, Baltimore, MD 21211
2004-2006Visiting Research Faculty, Electrical and Computer Engineering Department, CMU.
1997-2004Visiting Scientist, Computer Science Department, CMU
2000-2001/2002-2003Visiting Scientist, Spoken Language Systems Group, Laboratory for Computer Science, Massachusetts Instititute of Technology (MIT)
2003Visiting Researcher, RIKEN Brain Sciences Institute, Yokohama, Japan
2001-2002Visiting Scientist, Cognitive Machines Group, Media Laboratories, MIT
1997Postdoctoral Fellow, School of Technology and Computer Science, Tata Institute of Fundamental Research (TIFR), Bombay, India.
1996-1997Postdoctoral Fellow, School of Physics (Condensed Matter Physics group), TIFR.