Her credentials are currently held by Virginia Conference. Prior to joining the faculty at United, she served as Assistant Professor of Preaching and Practical Theology at Eastern Mennonite Seminary in Harrisonburg, VA where she also served as the director of their Preaching Institute. Joni also served as a sessional faculty member at Anabaptist Mennonite Biblical Seminary and Candler School of Theology as a postdoctoral fellow at Emory University.