– Research Scientist & Process Engineer, SK Innovation, Korea (1998 ~ 2003)
– Postdoctoral Fellow(Humboldt), Max Planck Institute for Polymer Research, Germany (2008 – 2010)
– Assistant/Associate Professor, Department of Chemical and Biomolecular Engineering, Sogang University (2010 ~ 2015)
– Professor, Department of Chemical and Biological Engineering, Seoul National University (2020 ~ Present)
– Program Director of Sustainable Technology, School of Transdisciplinary Innovations, Seoul National University (2024 ~ 2025.8.)
– Professor, Sustainable Technology Major, School of Transdisciplinary Innovations, Seoul National University (2024 ~ Present)