The HR advisor of the faculty of Science that supports all employees within the Observatory is Marian van de Walle, you can reach her via m.w.van.de.walle@science.leidenuniv.nl, her office is in the Gorlaeus building at the faculty of science, room BE1.10 see also https://www.universiteitleiden.nl/medewerkers/marian-van-de-walle#tab-1.
Employer's statement
The information on an employer's statement enables a bank, landlord or other organisation to determine your income. An employer’s statement can be requested at the PSSC Service Point: https://www.staff.universiteitleiden.nl/human-resources/help-support-and-complains/contact/pssc-service-point/science/leiden-observatory?cf=science&cd=leiden-observatory#request-employer-s-statement-nhg