Malley has worked as both a documentary and a portrait photographer, partly in association with Ross Gillespie. In recent years she has been employed as Senior Photographer by the University of Edinburgh. In 1995 a portrait of Professor John Erickson taken by Malley and Gillespie won a prize at the Communications in Business Awards in Harrogate. The two artists subsequently produced twenty-six 'Portraits of Excellence', of university members of staff, and have now set up their studio in Edinburgh as 'Broad Daylight'. In 1993 Malley had produced her own series, Tremendous Reality, documenting life in a Cistercian community in East Lothian.