Associate Professor in the School of English at Dublin City University. Marina teaches creative writing  at undergraduate and postgraduate level. She also  co-teaches on several modules within the school.
Other teaching experience includes Princeton University, Trinity College, University College Dublin and Notre Dame University. She has been visiting lecturer  and keynote speaker at many universities and Literary festivals around the World and has been Writer-In -Residence at the Abbey Theatre where many of her plays have premiered. 

Marina has three collections published by Faber&Faber in their Contemporary Classics series as well as many single edition publications with them. She is also published by The Gallery Press. Several of her plays are translated and are frequently performed in England, Europe and the USA. Her play BY THE BOG OF CATS is also published in the Norton Modern and Contemporary Irish Drama Edition.

Prizes include:
The Windham/Campbell Prize.
The E.M. Forster Award from The American Academy of Arts and Letters.
The Susan Smith Blackburn Prize.
The American/ Ireland Fund Award.
The Macaulay fellowship.
The Hennessey Award.
The Irish Times Best Play award.

Most recent Works:
HECUBA. Dublin Theatre Festival. Rough Magic. Project Arts Centre.
BLOOD WEDDING. Adaptation. Young Vic. London.
CYGNUM CANTICUM. Landmark Productions.
THE GIFT. Irish National Opera.

Current Works:
GILGAMESH. Macnas. Ongoing.
THE BOY. Abbey Theatre. Sept 2022/ Covid permitting.
GIRL ON AN ALTAR. Kiln Theatre. 2022?

Future Works:
Marina is currently under commission with The Royal Court Theatre London, The Abbey Theatre, The Gate Theatre, Headlong Theatre, Rough Magic Theatre and The Emergency Room.

She is a member of Aosdana.