2023, Researcher,  Celltrion(Korea)

2021, Researcher, Immunobiome (Korea)

2021, Post-doctoral researcher, POSTECH (Korea)

2020, Post-doctoral researcher, POSTECH (Korea)

2020, Post-doctoral researcher, Weill Cornell Medical College (WCMC) (USA)

2020, Post-doctoral Fellow, POSTECH (Korea)

2020, Head of Research Team, Immunobiome (Korea)

2017, Researcher, Meditox (Korea)

2017, Post-doctoral reseasrcher, College of Medicine, Yonsei University (Korea)

2017, Researcher, LG Chem/Drug Discovery Center (Korea)

2017, Researcher, SK biopharmaceuticals (Korea)

2016, Senior Research Scientist, Amyloid Solution (Korea)

2016, Senior Researcher, Korea Institute of Toxicology (KIT) (Korea)

2014, Researcher, Daegu-Gyeogbuk Medical Innovation Foundation, New Drug Development Center (Korea)

2014, Post-doctoral Fellow, Weill Cornell Medicine (USA)

2012, Senior Research Scientist, Korea Institute of Science & Technology(KIST) Gangneung Institute of Natural Products (Korea)

2012, Post-doctoral Fellow, Wasington University School of Medicine (USA)

2011, Post-doctoral Fellow, National Institutes of Health (USA)

2011, Senior Associate Scientist (Immuno-Oncology), Amgen Discovery Research, USA

2011, Assistant Professor, College of Medicine, Yonsei University (Korea)

2011, Assistant Professor, Department of Medical Biotechnology, Dongguk University (Gyeongju campus) (Korea)

2009, Researcher, Centers for Disease Control and Prevention (Korea)

2008, Post-doctoral Fellow, National Cancer Institute (USA)