Roelien has broad experience in the real estate world. In the last five years she worked for, among others, Municipality of Haarlemmermeer, where she supervised the sale of building land. Before that she worked as Sales Manager at SADC and Account Manager at Slavenburg's Bouwbedrijven.

Dirk Bakker, CEO: "Colliers invests in further increasing its commercial strength. I am very happy with the arrival of Roelien. She has extensive expertise in the field of both investments and the operational and development side of real estate. This makes her the ideal person for this important function within Colliers. '