- Director of KREONET Center, Principal Researcher, Korea Institute of Science and Technology Information (KISTI) * PI, KREONET/KREONet2 and KRLight project * PI, National Data eXchange (NDeX) * Building, operating and managing the national research network in Korea, KREONET, as well as global research network (KREONet2), and supporting KREONET user with advanced KREONET service. * Science Engagement: Supporting global collaborative big science research with high-performance networking such as KSTAR/ITER project, e-KVN (Korean eVLBI project), East-Asian EVLBI project, SKA project, etc * Supporting KREONET User Community and KREONET advisory group, etc. * Co-PI, NSF IRNC:AMI:The InSight Advanced Performance Measurement System (August 1, 2015 -January 31, 2018 (Estimated)) * Research on network measurement for high performance research network, performance enhancement, traffic monitoring and analysis and advanced network technology such as hybrid networking with more than 15-year experience.- International Relationship and Activity on Research Networking *APAN (Asia Pacific Advanced Network) Board of Director, APAN-KR Chair, since 2023 *A member of GNA-G (Global Networking Advancement Group) Leadership Team *GRP (Global Research Platform) Program Committee Member *Administrator of KRLight (Korea Light), a GLIF Open Lightpath Exchange (GOLE) of Global Lambda Integrated Facility (GLIF) community *The chair of P4 Application Working Group, SDN/NFV Forum in Korea- Associate Professor, Data & High Performance Computing Science, University of Science and Technology- Network Specialist * optical networking, switching and routing, network management with AI technology (CBR&RBR), active & passive network measurement, traffic measurement: snmp, mib etc, network performance tuning, NREN design, build, operation and management, data modeling: metadata, product data etc., information handling with XML, RDF etc. database schema design with ER-WIN, system development: JAVA, C etc.- System designer and developer in various applications related to network management and operation.
Listed skills include Linux, C, Data Modeling, Performance Tuning, and 10 others.