· CTO and Co-founder, Robust AI2019–
· Co-founder and Chief Technical Officer, MIT CSAIL2008–2018
· Founder, Chairman, and CTO, Rethink Robotics2008–2018
· Former Director, MIT Computer Science & Artificial Intelligence Laboratory (CSAIL)2007–2010
· Director, MIT Artificial Intelligence Laboratory1997–2007
· Director (1997 - 2007), MIT Computer Science & Artificial Intelligence Laboratory (CSAIL)1997–2007
· Director of the Artificial Intelligence Lab and of the Computer Science & Artificial Intelligence Lab, MIT CSAIL1997–2007
· Founder, Board Member (1990 - 2011), CTO (1990 - 2008), iRobot Corp1990–2011
· Founder, former Board Member, and CTO, iRobot Corp1990–2011
· Founder, Board Member, and CTO, iRobot Corp.1990–2011
· Research positions / Faculty, Carnegie Mellon University / Stanford University / MIT1984–
· Researcher and faculty member, MIT CSAIL1984–
· Researcher in Distributed Systems Group, Massachusetts Institute of Technology (MIT)
· Panasonic Professor of Robotics (Emeritus), MIT
· Professor Emeritus, MIT CSAIL