| 2005- Present |
Professor, Department of Mechanical Engineering, and Nanomaterials and Nanomanufacturing Research Center (NNRC), University of South Florida, Tampa |
| 2000-2004 |
Associate Professor, Department of Mechanical Engineering, and Nanomaterials and Nanomanufacturing Research Center (NNRC), University of South Florida, Tampa |
| 2004 (May-June) | Visiting Faculty, Institute of Microelectronics, Singapore |
| 2002 (Dec) | Visiting Scientist, Nagaoka University of Technology, Nagaoka |
| 2000-2001 | Adjunct Professor, Department of Electrical and Computer Engineering, University of South Alabama, Mobile |
| 1994-2001 | Cluster Director, Alabama NASA EPSCoR (Advanced Materials) |
| 2000 (Dec) | Visiting Faculty, Nagaoka University of Technology, Nagaoka |
| 1993-1999 | Assistant Professor, Department of Electrical and Computer Engineering, University of South Alabama |
| 1992-1993 | Research Associate Professor, Department of Electrical and Computer Engineering, University of South Alabama |
| 1985-1986 | Research Scientist, Indian Institute of Technology, Kanpur; INDIA |
