Dorianne joined the University of Malta in October 1997 as a Clerk. She was promoted to the grade of Executive Officer in May 2002. Dorianne joined the Communications & Alumni Relations Office in June 2010. She is mainly responsible for the administration of the University Alumni database and Alumni relations. She is also involved in the day-to-day running of the office. She was promoted to Administrative Assistant in October 2016. In December 2024 she was promoted to Manager.