Mr. Brown has served as a member of our board of directors since October 2015. Mr. Brown has served as chief executive officer of Sand Hill East LLC, a strategic management, investment and marketing services firm, since February 2014. Since 2006, he has also been the chief executive officer and co-owner of Biz Tectonics LLC, a privately held consulting company. From September 2010 to October 2013, Mr. Brown served as group chief technology officer of UBS Securities LLC, an investment bank. From 2008 to 2010, Mr. Brown served as head of strategy, architecture and optimization at Bank of America Merrill Lynch, the corporate and investment banking division of Bank of America. From 2006 to 2008, Mr. Brown served as chief technology officer of infrastructure at Credit Suisse Securities (USA) LLC. Mr. Brown currently sits on the board of directors of Guidewire Software, Inc., a provider of software products for property and casualty insurers, where he serves as a member of the compensation committee. Mr. Brown holds a Bachelor of Science (Honors) in chemical physics from University College London.