Nikos Theodosopoulos has been a director since March 2015. Since August 2012, Mr. Theodosopoulos has served as founder of NT Advisors LLC, an advisory and consulting company. From August 1995 through July 2012, Mr. Theodosopoulos served in various capacities with UBS, a global provider of financial services, most recently as managing director of technology equity research. From April 1994 to August 1995, he was a senior equity research analyst for Bear, Stearns & Co., an investment banking firm that was acquired by JPMorgan Chase in 2008, and from January 1990 to April 1994, he worked as an account executive for AT&T Network Systems. Mr. Theodosopoulos has served on the board of Arista Networks since March 2014, where he is also a member of the Audit Committee and the Nominating and Corporate Governance Committee. In December 2014, Mr. Theodosopoulos joined the Supervisory Board of ADVA Optical Networking SE, where he currently serves as chairman and is a member of the Audit Committee and chairman of the Compensation and Nomination Committee. Mr. Theodosopoulos holds a B.S. in electrical engineering from Columbia University, a M.S. in electrical engineering from Stanford University and an MBA from New York University’s Stern School of Business.