| 1988/Apr-1989 | Research Resident at National Cancer Center Research Institute, Biophysics Division |
| 1989/Jun-1994 | Research Staff at National Cancer Center Research Institute, Biophysics Division |
| 1994/Oct-Present | Head of Bioinformatics Section, National Cancer Center Research Institute, Cancer Information and Epidemiology Division |
| 2000/Aug-2001/Mar | Visiting Scientist, National Center for Biotechnology Information(NCBI),NLM,NIH |
| 2000/Oct-Present | Center for Medical Genomics, National Cancer Center Research Institute |
Publications
Presentation at International Conferences etc.