Mark Kosters is the CTO of the American Registry for Internet Numbers (ARIN), responsible for all engineering initiatives within the organization, leading both development and operations. Mark has over twenty-three years of experience as an applications developer, networking engineer, technical manager and executive.
Over the last eighteen years, he has been a senior engineer at Data Defense Network (DDN) NIC, chief engineer and Principal Investigator under the NSF-sponsored Internet NIC (InterNIC), and Vice President of Research at VeriSign. Over his career, Mark has been involved in application design and implementation of core internet client/server tools, router administration, UNIX system administration, database administration, and network security. He has represented both network information centers in various technical forums such as the IETF, RIPE, APNIC, CaribNOG and NANOG.