Kim Seong Sik has built an illustrious career demonstrating advanced progress and leadership in technology and development. His expertise spans transactional service planning and development, e-commerce platform organization, and pioneering PMO initiatives, making significant contributions to improving service frameworks, operational efficiency, and collaboration. Bithumb's Chief Technology Officer, 2019, leads a team of 80 people and is focused on planning and developing trading services. Notable achievements include spearheading service developments and overseeing the construction of an integrated Korea Exchange (KRX) platform. Huobi Korea's Chief Technology Officer (CTO), led a team of 60 people in 2018 and played an important role in the planning and development of transaction services. Specifically, they were involved in building a global next-generation front-end engine, and this effort greatly increased application throughput. NAVER's PMO leader oversaw a large team of 3,000 people in 2011 and was responsible for operating external link services. This role included integrating Naver services for leading companies such as Hyundai Motors, SBS, and LG Electronics, which highlighted business improvements and reforms. Kim Seong Sik's career has been distinguished by his unwavering dedication to the technology industry.