Professor, Department of Chemistry and Biochemistry, College of Sciences and Mathematics, Auburn University
Associate professor, Organic and Physical Chemistry
1978 - 1982
Assistant Professor, Organic and Physical Chemistry
1974 - 1978
Scientific Officer, Physical Chemistry, Office of Naval Research (ONR), United States Department of the Navy, United States Department of Defense (past)
1973 - 1974
Professor, Organic and Physical Chemistry
1982 - 2003
Assistant Professor, Physical Chemistry
1972 - 1973
Research Chemist, Johnson Spacecraft Center
1969 - 1972