She is retired as a professor of mathematics and dean at Ewha Womans University.
[2] Her dissertation, The Brauer Group of an Integral Scheme, was supervised by Morris Orzech.
[2] Lee became founding editor of Communications of the Korean Mathematical Society in 1986.
[2] She was the second president of the Korea Federation of Women's Science & Technology Associations (KOFWST), serving from 2006 to 2007.
[6] She is a professor emeritus at Ewha Womans University,[2] and president of the Korea Center for Gendered Innovations (GISTeR).