Teacher history Rembrandt Lyceum, Leyden, 1971. Assistant professor sociology State University Leyden, 1971-1982, guest assistant professor sociology, 1982-1984. Research coordinator Ministry of Agriculture, The Hague, 1984-1986, head section fauna and flora protection, Ministry of Agriculture, The Hague, 1986.
Head section Information, Communication and Research, Twijnstra Gudde Management Consultant, Deventer, The Netherlands, since 1986. Public Vogelvreugd Public House, Voorhout, since 1982.