Mr. David Greene served as Chief Executive Officer and Board Member at ZeroStack. He serves as Chief Revenue Officer at Fortanix. He is leading the team and directing corporate strategy. He has nearly 30 years' experience leading marketing, product management, and business development in public and private technology companies. He previously served as senior vice president and chief marketing officer at cloud networking leader Aerohive Networks. Prior to that, he held CMO and vice president positions with Riverbed Technology, BMC Software, and Active Reasoning. David holds a B.A. in Architecture and a B.A. in Computer Science from the University of California, Berkeley.