Warren began his career as a management consultant for Ernst & Young in London, England where he managed a worldwide system integration project for Hewlett Packard. His other clients included AT&T, Cisco Systems, PG&E Energy Services, and Xilinx where he led cross-functional teams to deploy localized requirements.
After gaining experience in the corporate world, Warren founded a series of companies in the San Francisco Bay Area that included a financial transaction platform, a real estate investment trust, and a carshare system. He returned home to Hawaii to help establish the Energy Excelerator where he built the Go-to-market track and mentored over 25 CEOs. These experiences allowed Warren to realize the potential of TerViva where he now leads their business development efforts in Hawaii and the Asia-Pacific region.