Barry O'Sullivan is Senior Vice President in the CTO and Strategy group at Cisco. He is responsible for strategic initiatives in the area of business and technology partnerships. 

Previously at Cisco, O'Sullivan led the Collaboration and Unified Communications businesses leading Cisco's six major solutions in this sector to the number one market share position worldwide. He also ran the Customer Contact business unit. O'Sullivan joined Cisco in 2002.

Before joining Cisco, O'Sullivan spent 18 years at Nortel Networks as Vice President and General Manager of the company's contact center business and as Vice President of Enterprise Voice for Nortel Networks Europe. As a technology evangelist, he speaks to audiences worldwide about how technology is changing the way we work. 

O'Sullivan is a founding member of the Irish Technology Leadership Group and serves on the board of Cope, an Irish charitable organization focused on reducing isolation and homelessness.

He holds a bachelor's degree in electrical engineering and a master's degree in computer science from the National University of Ireland, as well as a master's degree in business administration from Santa Clara University, California.

Follow Barry O'Sullivan on Twitter @siliconbarry