In 1945, Kiely began working for the Irish Independent, where he was employed as a journalist and critic. In 1950, now a father of four, he joined the Irish Press as a literary editor. In 1964, he moved to America, where he was a Writer-in-Residence at Emory University, visiting professor at the University of Oregon, and Writer-in-Residence at Hollins College (Virginia). He spent four years in those three different places. In 1968, he returned to Ireland after having spent four years in America. In the spring of 1976, he was Distinguished Visiting Professor at the University of Delaware. He continued to receive acclaim for his writing and journalism (a career which spans over six decades) receiving the Award for Literature from the Irish Academy of Letters. By now, he was one of Ireland's best known writers. In 1996, he was named Saoi of Aosdána, the highest honour given by the Arts Council of Ireland.