Charles Giancarlo

Charles Henry "Charlie" Giancarlo (born 1957) is an American entrepreneur and investor. He is currently CEO of Pure Storage and a former senior executive of Cisco Systems and Silver Lake Partners.

Giancarlo holds a bachelor's degree in electrical engineering from Brown University, a master's degree in electrical engineering from the University of California at Berkeley, and an MBA from Harvard University.

He co-founded Telecom Systems in 1984, and then Adaptive Corporation in 1988.

Giancarlo joined Cisco in 1994 when it acquired Kalpana, an Ethernet switching company, where he was vice president. He became Cisco's first vice president of business development, where he developed Cisco’s merger and acquisition strategy and practice. In 1999, he took responsibility for the commercial line of business at Cisco,. He became chief technical officer in 2003 and chief technology officer in July 2004. Giancarlo was responsible for many of Cisco's technologies including Ethernet switching, Wi-Fi, security, IP Telephony, and telepresence, as well as Cisco's entry into markets such as the small and medium business and consumer markets after acquiring Linksys, Scientific Atlanta, and WebEx. Although some analysts thought he might become chief executive after John T. Chambers, Giancarlo resigned from Cisco in December 2007.

In January 2008, he became a managing director and operating partner at the private equity firm Silver Lake Partners. He was president and CEO of Avaya from June 2008 (replacing Louis D'Ambrosio) through December 2008. After the appointment of Kevin J. Kennedy as CEO, he became chairman of the board at Avaya, while continuing to serve at Silver Lake.

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