5/23 – 2/24 Consultant, Bell Flight, Textron, Fort Worth, Texas.
6/21 – present Professor Emeritus and Centennial Professor, Dept. of Civil and Architectural Engineering and Mechanics, University of Arizona
8/88- 5/21 Professor of Civil Engineering and Engineering Mechanics, University of Arizona
7/02-12/08 Director of Academic Programs, Department of Civil Engineering and Engineering
Mechanics, University of Arizona, Tucson, Arizona
1/16-4/16 Visiting Professor, Indian Institute of Technology – Kanpur, India
3/09-5/09 Visiting Professor, Indian Institute of Science, Bangalore, India
1/09-3/09 Guest Professor, University of Tokyo, Japan
1/02 –2/02 & Visiting Professor, Academy of Sciences of the Czech Republic, Institute of
5/02-6/02 Theoretical and Applied Mechanics, Prague, Czech Republic, and Technical University
of Ostrava, Czech Republic
2/02-3/02 Visiting Professor, Hong Kong University of Science & Technology, Kowloon, Hong Kong
7/95-12/95 Visiting Scholar, Norwegian Institute of Technology, University of Trondheim, Norway
7/85-8/88 Associate Professor, School of Civil Engineering, Georgia Inst. of Tech., Atlanta, GA
9/79-6/85 Assistant Professor, School of Civil Engineering, Georgia Inst. of Tech., Atlanta, GA
8/78-8/79 Assistant Professor of Civil Engineering, Illinois Institute of Technology, Chicago, IL
6/76-8/78 Staff Engineer, Bechtel Power Corporation, Norwalk, California
1/72-5/76 Teaching and Research Assistant, University of Illinois, Urbana, Illinois
4/72-11/72 Designer, Marco Steel Supply Co., Champaign, Illinois
5/70-1/72 Junior Engineer, Engineers India Ltd., New Delhi, India
6/68-4/70 Design Engineer, Paharpur-Marley Cooling Tower Engineers, Calcutta, India
5/67-7/67 Student Engineer, Kuljian Corporation, Calcutta, India