Lee Jong In is currently Chairman of Korea Institute of Radiological and Medical sciences. Previously, he was under presidential position at Korea Institute of Nuclear Energy. He has been a researcher at Korea Institute of Nuclear Safety (KINS) over 10 years, working as head director for radioactive safety department, regulatory department and program director. He also worked several years for International Atomic Energy Agency (IAEA) as consultant from 1999. He had his B.A, M.Phil. and Ph.D from Department of Atomic Energy, Hanyang University.