Rev. Trafny completed his studies in philosophy and theology at the Catholic University of Lublin. Ordained as a priest in 1996 for the Archdiocese of Lublin, he served as a parish assistant in Kazimierz Dolny (Archdiocese of Lublin), as a chaplain at the Hospice for Terminally Ill Patients, and as a chaplain at the Medical University of Lublin. He continued his postgraduate studies in philosophy at the Catholic University of Lublin and afterwards at the Pontifical Lateran University in Rome.
Since 2006, he has served as the official at the Pontifical Council for Culture, head of Science and Faith Department (Vatican City State) and executive director of STOQ Project. His focus is on matters related to the wide-ranging dialogue between science and religion, especially cultural analysis of scientific advancements, but his interests also include philosophy and theology of nature as well as environmental and climate change issues. He is director of the STOQ Project Research Series and chairman of STOQ International (www.stoqinternational.org).