· Senior Principal Engineer / Head of IoT Technology Strategy, Amazon Web Services (AWS)2017–
· Director, Real Time Engineers Ltd.2004–2017
· Head of Innovation, Wittenstein High Integrity Systems1999–2016
· BS, MS, and PhD in Electrical Engineering, Massachusetts Institute of Technology1989–
· Assistant Professor, Massachusetts Institute of Technology
· Member of the Technical Staff, MIT Lincoln Laboratory
· Co-founder and CTO, Sycamore Networks
· Co-founder, Sycamore Networks, Inc.