1998-present Associate Professor of Astronomy, Department of
Physics & Astronomy, Vanderbilt University
1991-1998 Assistant Professor of Astronomy, Department of
Physics & Astronomy, Vanderbilt University
1989-1991 Research Associate, Department of Astronomy,
University of Florida
1985-1989 Research and Teaching Assistant, Department of Astronomy,
University of California, Los Angeles
1984-1985 Instructor of Astronomy, Santa Monica Community College
1980-1984 Research and Teaching Assistant, Department of Earth & Space Sciences,
University of California, Los Angeles