Jung was the Founding Director of the Centre for the Study of Text and Print Culture at Ghent University.
[1] For the past 13 years, he has been the editor-in-chief of ANQ: A Quarterly Journal of Short Articles, Notes and Reviews.
Jung has been the recipient of numerous short- and long-term fellowships, including at the Houghton Library, Harvard University, where he was Eleanor M. Garvey Fellow in Printing and Graphic Arts and at Princeton University Library, where he was based in the Graphic Arts Department.
In 2015, Jung was awarded a Marie Curie long-term fellowship as part of the EURIAS Junior Fellowship scheme, as part of which he researched the marketing of eighteenth- and nineteenth-century Scottish literature at the University of Edinburgh's Institute of Advanced Studies.
He is especially interested in lyric forms of poetry such as the ode and the pastoral, and he has extensively researched the (Georgic) long poem, publishing major studies of James Thomson's magnum opus, The Seasons.