After graduating from college, Thomas moved to
Boston to join Clear Light Productions as a film and media producer. In 1982, he was appointed assistant professor of English at the
University of Chicago where he remained until 1990. Thomas then returned to the East Coast to serve as professor and chair in the English Department at
Trinity College. Thomas was named Andrew W. Mellon Faculty Fellow in the Humanities at
Harvard University in 1991 and 1992, taking a leave from Trinity to begin research on his second book project,
Detective Fiction and the Rise of Forensic Science. Thomas was appointed college vice president and chief of staff at Trinity in 1998, overseeing the implementation of Trinity’s campus master plan and its nationally recognized engagement with the community. He was chosen as Trinity’s interim president in 2001 and 2002.
University of Puget Sound Thomas served as the thirteenth president of the University of Puget Sound from July 16, 2003, to June 30, 2016. Major projects during his tenure included a 20-year campus master plan; a strategic plan of action that positioned the university as a national leader in liberal arts education focusing on civic engagement and innovation; and an ambitious comprehensive capital campaign. Thomas also led new enrollment partnerships with the Tacoma Public Schools and the
Posse Foundation to expand the university’s commitment to diversity, equity, and access. Under Thomas’s leadership, Puget Sound was included in the guide
Colleges That Change Lives, which singles out Puget Sound for the transformational effects that its dedicated faculty, innovative curriculum, and engaging community have on the lives of students and the accomplishments of graduates. Students at the University of Puget Sound called him "RonThom." In 2017, following his presidency, Thomas helped form Reinstitute, a group that works with campus leaders “to deepen the understanding of the fundamental challenges and transformations facing higher education and to implement mission-based action plans in response to them.” Thomas also served on the governing boards of the
College of Idaho and Vashon Center for the Arts in Washington State. ==Scholarship==