- 1995-1996
STA Fellow, NCVC Osaka, Osaka, اليــابــان
- 1997-2000
Pool Scientist (Assistant Professor, SCTIMST Kerala and IIT Bombay, Trivandrum and Mumbai, الهــــــند
- 2000-2001
Visiting Scientist, Albert Einstein College of Medicine, New York, امــريــكـا
- 2001-2004
Postdoctoral Fellow, PennState University, Hershey, امــريــكـا
- 2004-2005
Research Assistant Professor, UIC, USA, Chicago, امــريــكـا
- 2005-2009
Professor and Head, PA College of Engineering, Mangalore, الهــــــند