Yoohwan Kim is a researcher and educator in Computer Science at University of Nevada Las Vegas (UNLV). He is also a CTO for NodeLaunch that streamlines the process of launching and managing masternodes. His research on blockchain includes blockchain scalability, data privacy on the blockchain, blockchain application architecture, and smart contract applications. He has been also serving the community with education on blockchain and cryptocurrency as well as the development of various blockchain applications. His other research interests are in computer networks, network security, and data analytics. His research on distributed denial-of-service attack prevention has established a foundation for a field called Rate-Based Intrusion Prevention Systems and he holds 6 patents granted or pending. His research has been supported by Microsoft Research, US Air Force, US Navy Air Command, Oak Ridge National Laboratory, NASA, National Nuclear Security Administration, National Security Agency, and National Science Foundation. Prior to UNLV he has been working in software and communication networking industry for several years. He was a software engineer at Lucent Technologies for developing wireless networking equipment, a co-founder of a technology start-up for Internet advertising, a Management Information Systems Consultant at Andersen Consulting (now Accenture), and a database programmer at Cleveland Clinic Foundation. He received his bachelor degree in Economics from Seoul National University in South Korea and Ph.D. in Computer Science from Case Western Reserve University.