Charles is a developer advocate in the Cisco DevNet team with a passion for open source and standards. His open source journey began in 1999 as a founding member of Vovida Networks, where he developed some of the industry’s first open source Voice over IP (VoIP) protocol stacks and applications. Now at Cisco, Charles is a recognized champion of open source, standards, and interoperability. In 2015, he introduced open source hackathons into IETF and MEF, revolutionizing the way these SDOs operate and uniting open source software with standards to maximize the pace and relevance of both. Charles currently co-chairs MEF’s Application Committee, which is standardizing an SD-WAN service definition to accelerate deployment and adoption of MEF 3.0 SD-WAN services orchestrated across a global ecosystem of automated networks.