Dumanis’s first collection of poetry, My Soviet Union (University of Massachusetts Press, 2007), won the 2006 Juniper Prize for Poetry. Other works have appeared in literary journals, including Denver Quarterly, H.O.W. Journal, New England Review, Pleiades, "Ploughshares", Post Road, and Prairie Schooner.
Along with poet Cate Marvin, Dumanis coedited the anthology Legitimate Dangers: American Poets of the New Century (Sarabande Books, 2006). He also served as the Section Editor for the poetries of Bulgaria, Czech Republic, Macedonia, Russia, and Slovakia in The New European Poets, an anthology from Graywolf Press (2008). Additionally, he acted as the editor for Cleveland State University Poetry Center's new publications from 2007, when he took over the small press’s directorship, until 2012.
Born in the former Soviet Union, Dumanis came to the United States with his parents when they were granted political asylum in 1981. From 2005–2007, he taught creative writing at Nebraska Wesleyan University in Lincoln, Nebraska. From 2007 to 2012, was a professor of English at Cleveland State University and served as Director of the Cleveland State University Poetry Center, a literary small press. In 2012, he joined the literature faculty at Bennington College. He divides his time between Bennington, Vermont and Brooklyn.
In 1999, Dumanis received a fellowship from the Fulbright Commission, and has since received fellowships from Yaddo, the James Michener Foundation, the Wesleyan University Writers’ Conference, the Sewanee Writers' Conference, the Headlands Center for the Arts, and the Civitella Ranieri Center in Umbertide, Italy. He was also awarded a 2012 Creative Workforce Fellowship from the Community Partnership for Arts and Culture  and a grant from the Ohio Arts Council.