Dong-Yul(David) is the Systems Engineering Director for Korea. He is responsible for technical engagements, architectures, solutions and Juniper Partner enablement. Prior to his current role, Dong-Yul(David) was SP SE Tech Lead and successfully engaged many service provider network transformations with leading SP SE team and partners. He joined Juniper as a Security Systems Engineer at first and took a role of Enterprise Systems Engineer as well. Because of this various role and more than 10 years of Juniper career, Dong-Yul(David) has wide experience and good insight in various networking area and technologies. Prior to Juniper, Dong-Yul(David) worked in DACOM, a pioneering data communications company which became LG Uplus. He has experience of many kinds of data communications network there and mainly designed and operated MPLS/VPN network. Dong-yUl(David) graduated with B. Eng in Electronics Engineering with a major in Information and Communication Engineering from Kyungpook National University.