While simultaneously pursuing his doctorate at Yale, May began his teaching career in theology at
Smith College. He served as Chair of the Department of Religion twice while at Smith College. Four years after completing his doctorate, May joined
Indiana University as founder and chair of a new Department of Religious Studies. In 2017, the directorship of the Maguire Center for Ethics was endowed in May's name. Following his retirement from SMU, May served as a visiting professor at the Institution for Social and Policy studies, Yale University, 2000 and 2001. He moved to Charlottesville, Virginia where he was a Fellow of the Institute for Practical Ethics and Public Life at the
University of Virginia before eventually retiring entirely from writing, teaching and speaking professionally. ==Other Professional Affiliations==