Industry leadership

John Giere, President and CEO

John Giere has almost 30 years of wireless industry management experience in sales, product management, marketing and business development. Prior to his role as President and CEO of Openwave Mobility, John served as GM of the mediation business unit for Openwave Systems. Before Openwave Systems, John served as CMO for Alcatel-Lucent and CMO for Lucent Technologies. Before joining Lucent in 2003, John worked for Ericsson in various strategic marketing and business development roles. John currently serves on the Board of Sonim Technologies. He holds an MBA from the University of Maryland and a Bachelor of Science degree from Georgetown University.


Indranil Chatterjee, SVP of Products, Sales & Marketing

Indranil Chatterjee has over 20 years of experience in product management, marketing, strategy and software development in the mobile communications and IT industries. Prior to joining Openwave Systems, Indranil was Director of Product Management at Syniverse Technologies, responsible for new product development for wireless applications and mobile analytics. Before joining Syniverse, he served as Director of Wireless Solutions for Alcatel-Lucent. Indranil was a member of the Board of Governors of 4G Americas. He holds an MBA from Duke University’s Fuqua School of Business and a bachelors degree in Mechanical Engineering from Indian Institute of Technology (IIT) – BHU, India.


Poh Sim, CFO

Poh Sim Gan has worked for over 25 years in finance and accounting.   Prior to Openwave, Poh Sim held senior finance management positions at several companies, including NetLogic Semiconductor (NASDAQ: NETL) and Marvell Semiconductor (NASDAQ: MRVL).  Prior to that, she held several positions in transaction services and audit advisory groups of PricewaterhouseCoopers LLP, working out of their San Francisco/San Jose, London and Singapore offices.  She holds a Bachelor of Accountancy degree from the National University of Singapore.


Matt Halligan, CTO and Head of Engineering

Matt Halligan has 25 years of experience in the telecommunications industry and has held a range of technical and management roles within Research & Development. Prior to his role of Vice-President of Engineering at Openwave Mobility, Matt was Vice-President for Engineering within Openwave Systems, responsible for all R&D functions for the Mobile business, management of 180 engineers across the globe and site management of the Belfast facility. Before joining Openwave Systems in 2002, Matt spent 7 years at Nortel and was the Chief Software Architect for Nortel’s NITEC R&D facility, with responsibility for SDH optical networks software solutions. Matt graduated with first class BEng honors degree.