Mariusz Biliniewicz currently serves as Director of the Liturgy Office in the Archdiocese of Sydney. He has worked at the University of Notre Dame Australia as Senior Lecturer in Theology and Associate Dean of Research and Academic Development. He has studied and taught in Poland, Ireland and Australia and has spoken and published internationally on a number of theological topics. His interests include contemporary Catholic theology, liturgy, sacraments, Second Vatican Council, intersections between ecclesiology and moral theology, faith and reason and general systematic theology.