When Marloes finished her study Medical Biochemistry at the Hogeschool Enschede she started working as a research assistant at the University of Utrecht. Her project focused on chemo sensitization of myeloma plasma cells by decreasing anti-apoptotic proteins. In 2002 she started a new position at the Medical Spectrum Twente in Enschede where she worked on the in vitro study of biodegradable small diameter blood vessels made of polymers. She continued this project in 2005 at the University of Twente.
In 2008 she moved to Australia where she started working at the University of Melbourne. Within the department of Prof. Frank Caruso she worked on targeting cancer cells using click-functionalized polymer capsules. In 2014 she moved back to the Netherlands and from September 2014 onwards she has been working as a lab manager within MERLN at Maastricht University. She is responsible for MERLN's ML2 cell culture facility and assists in several research projects.