Erin has published widely on early medieval literature and culture, as well as a significant body of interdisciplinary archaeological research with a particular focus on shipsettings, medieval maritime culture, and monumentality. Before coming to Flinders University, she taught at Monash University (Melbourne), University College Dublin, Trinity College Dublin and Queen's University Belfast. She is currently Associate Professor in Medieval Literature and Language and Research Section Head for Literature, Languages, Culture and Society. She is Lead CI on the ARC Discovery Project, The First English Speakers in Their Own Words, and CI on another ARC Discovery Project, Finding Friendship in Old English Literature. She has a recurring segment on medieval cultures in The Sunday Mail (Adelaide). Her first monograph, In Enigmate: the history of a riddle from 400-1500, was published in 2018. Her forthcoming monograph on Beowulf is due out with Manchester University Press.