Emeritus Professor of Theology, University of St. Thomas (Minnesota), 2020-.- Professor of Theology, University of St. Thomas (Minnesota) 2009-20.
- Core faculty, Department of Justice and Peace Studies, University of St. Thomas (Minnesota), 2014-
- Chair, Department of Justice and Peace Studies, University of St. Thomas (Minnesota), 2012-13
- Director, Justice and Peace Studies Program, University of St. Thomas (Minnesota), 2007-12.
- Associate Professor of Theology, University of St. Thomas, St. Paul, Minnesota, 2000-2009.
- Consultant for Peace Theology Project. Mennonite Central Committee Peace Office. 2004.
- Participant, Workgroup on Theology and Power, Project on Lived Theology, supported by the Lilly Endowment and housed in the Department of Religious Studies, University of Virginia, 2001-.
- Lead trainer, Assessment Training Workshop for Master of Arts in Organizational Management faculty, Bluffton College, 27 April, 2 & 5 May 2000.
- Associate Professor of History and Religion, Bluffton College, Bluffton, Ohio, 1998-2000.
- Assistant Professor of History and Religion, Bluffton College, Bluffton, Ohio, 1996-98.
- Committee executive, Goshen (Indiana) College Presidential Search Committee, 1995-96.
- Instructor, Department of Theology, University of Notre Dame, spring 1996, summer session 1995, spring 1994.
- Instructor, Associated Mennonite Biblical Seminary, Elkhart, Ind., fall 1995, spring 1994.
- Instructor, Freshman Writing Program, University of Notre Dame, 1994-95.
- Graduate assistant to David Burrell, C.S.C., and Jean Porter, Department of Theology, University of Notre Dame, 1991-1993.
- Special writing projects for Mennonite Central Committee, and editor of MCC Newsletter on the Americas, 1987-1989.
- Moderator of Consultation on Peacemaking Strategies, El Hatillo, Tegucigalpa, Honduras, August 1986.
- Regional Coordinator, Central America Peace Portfolio, Mennonite Central Committee, 1983-1987, with responsibilities for theological education, interpretive writing, editorial consultancy, and leadership training.
- Co-professor of course on “Peace and Justice in the Mennonite Tradition,” SEMILLA [Anabaptist-Mennonite seminary without walls in Central America], Antigua, Guatemala, September 1986.
- Co-representative of Mennonite Central Committee in Nicaragua, 1983-1985, with responsibilities for overseeing relief and development projects, consultancy on conscientious objection to the military and alternative service, and leadership training.