Hans Vonk Purchasing Agent Name J.J. Vonk Telephone +31 71 527 6949 E-mail j.j.vonk@issc.leidenuniv.nl Purchasing Agent ICT Shared Service Centre Customer Relations Supply Chain Work address Snellius Niels Bohrweg 1 2333 CA Leiden Room number 0.16 Contact +31 71 527 6949 j.j.vonk@issc.leidenuniv.nl No relevant ancillary activities