Complex sentence: He served as an Assistant Professor in the Department of Environmental System Engineering, Clemson University from 1995-97 and came to California in 1997 as Research Scientist at Lawrence Berkeley National Laboratory (LBNL).
Split into simpler sentences: He served as an Assistant Professor in the Department of Environmental System Engineering, Clemson University from 1995-97. He came to California in 1997 as Research Scientist at Lawrence Berkeley National Laboratory (LBNL).