Board of Directors

Jim is the Founder and former CEO of MoPub. He started MoPub in 2010 to provide better ad monetization and control tools for mobile publishers. Under his leadership, MoPub grew to a $100MM revenue run rate and introduced the first and largest RTB exchange for mobile advertising. Less than three years later, MoPub was sold to Twitter. Post acquisition, Payne served as Twitter’s Vice President, Exchange, where he successfully integrated the MoPub unit into Twitter’s broader revenue team. Before MoPub, Payne served on the product team at AdMob, acquired by Google in 2010. Previously, he was on the product team at Google, where he managed Google Maps advertising products. He is a software engineer by trade with a BS in Computer Science from MIT.

Mike Driscoll founded Metamarkets in 2010 after spending more than a decade developing data analytics solutions for online retail, life sciences, digital media, insurance, and banking. Prior to Metamarkets, Mike successfully founded and sold two companies: Dataspora, a life science analytics company, and CustomInk, an early pioneer in customized apparel. He began his career as a software engineer for the Human Genome Project. Mike holds an A.B. in Government from Harvard and a Ph.D. in Bioinformatics from Boston University.

Dr. Deborah Rieman has served for over 30 years in the computer software, networking, and communications industries. Previously, she served as president and CEO of Check Point Software Technologies Incorporated, and held various executive and management positions at Adobe Systems, Sun Microsystems, Xerox Corp., and MITRE Corp. She began her career as Assistant Professor of Mathematics at the University of California, Santa Cruz. Deborah also serves on the board of directors of Corning, Inc., and Neustar and has served on several other boards in the technology industry. She was named as one of Time Magazine’s “50 Cyber-Elite,” Working Woman magazine’s “Top Ten Women in Technology,” one of the “Top 25 Women on the Web” by SF WoW and was named an outstanding business leader and awarded a Junior Achievement Laureate by the Junior Achievement’s Business Hall of Fame. Most recently, Deborah was named to the 2016 NACD Directorship 100, recognizing her as a role model in promoting exemplary board leadership. 

Roger is the founder and Managing Partner of IA Ventures, a seed-stage venture capital firm investing in companies that create competitive advantage through data. He sits on the boards of DataSift, Metamarkets, Recorded Future, Simple, The Trade Desk, and Twice, and is a Board observer of MemSQL and SavingStar. Prior to forming IA Ventures, Roger was an angel investor through IA Capital Partners. From 2004 to 2009, he seeded 40 companies, including Bitly, Buddy Media (acquired by Salesforce), Clickable (acquired by Syncapse), Invite Media (acquired by Google), Magnetic, TheLadders, TubeMogul, and TweetDeck (acquired by Twitter). Roger holds an MBA in Finance, Accounting and Management from Columbia Business School and a BBA in Finance, Economics and Organizational Psychology from the University of Michigan. He blogs at informationarbitrage.com and tweets at @infoarbitrage.

Jeff Epstein is an Operating Partner at Bessemer Venture Partners, where he specializes in Marketplaces and Cloud Computing. Jeff is the former Executive Vice President and Chief Financial Officer of Oracle, one of the world's largest and most profitable technology companies, with a market value of over $150 billion. Prior to joining Oracle, Jeff served as Chief Financial Officer of several public and private companies, including DoubleClick (sold to Google), King World Productions (sold to CBS) and Nielsen's Media Measurement and Information Group. Earlier in his career, he was an investment banker at The First Boston Corporation. He serves on the Boards of Directors of Kaiser Permanente, The Priceline Group, Shutterstock, Twilio, Global Eagle Entertainment and several private companies. In addition, he is a Lecturer at Stanford University's Department of Management Science and Engineering. Jeff holds an MBA from the Stanford University Graduate School of Business, where he was an Arjay Miller Scholar, and a BA from Yale College, where he graduated summa cum laude, Phi Beta Kappa.

Bruce Armstrong is an operating partner at Khosla Ventures, where he focuses on big data and cloud infrastructure, leveraging his more than 25 years of experience developing, marketing, selling and investing in enterprise technology companies. Prior to Khosla Ventures, Bruce was the president and CEO of PivotLink (acquired by SmartFocus). He served as CEO of several public and private companies including Kickfire (acquired by Teradata) and KNOVA Software. Earlier in his career, Bruce held various executive and management positions at Broadbase Software, Sybase, Teradata Corporation (acquired by AT&T/NCR) and AT&T. Bruce has served on the boards of a variety of technology companies including Accruent, Big Switch Networks, BuyMedia, Citadon, Evolving Systems, GitLab and Mesosphere. He also served on several advisory boards. Bruce holds a bachelor’s degree in computer science from the University of California at Berkeley. He is also a trustee on the board of The Bay School of San Francisco.