Ann Stephen's curatorial career over four decades has been in public and university museums. She joined Sydney University Museums as the senior curator of the University Art Gallery in 2009, and has been responsible for the University Art Collection and developing the art exhibition and publication program.
As President, Art Association of Australia and New Zealand (2011–14), Ann has been a mentor for early career academics as well as many colleagues in art history and art curatorship. She has an established national and international publishing record in modernism and conceptual art and in 2015 was invited to join the Scientific Committee of the European Network for Avant-garde and Modernism Studies.
She has been awarded two ARC grants and many prizes for her academic work. She was appointed a Fellow of the Australian Academy of the Humanities in 2009. Since 2014, she has been chair of Art Monthly Australasia.