Josien has been active in the field of inclusive finance for over 19 years. In her former position as Director of NpM, Platform for Inclusive Finance, she was responsible for the representation of the Dutch Inclusive Finance sector and facilitated cooperation, knowledge development and sharing amongst the members of NpM.

Before NpM, she held a senior position at Rabo Development. She was responsible for restructuring Rural Banks in the Middle East and Asia. She was also responsible for different advisory trajectories for international organisations, such as the International Finance Corporation (IFC) and research projects with regard to Value Chain Finance. Other functions she held at Rabobank International were Project Manager Securitization, and Credit Structurer Food and Agribusiness.