Roser studied Translation and Interpreting in Barcelona, and Art History in Amsterdam. She is a history educator at both the National Maritime Museum and the Suriname Museum. She specialized in Museum Studies, and has worked at the Anne Frank Huis, the Stedelijk Museum and the Rembrandt Huis. She has been an enthusiastic Context Expert since 2019.

She is an avid reader and practices contemporary dance regularly. As a Catalan person living in the Netherlands, she has acquired the gifts of directness, a full schedule, and cycling under any kind of weather.