customer service team player german language skills cleaning ms office transport kitchen nursing quality standards guest service independent work apprenticeship administrative tasks hygiene standards pc skills patient service service orientation hospital experience hotel experience public holidays basic care online application discharge late shift early shift admission irregular shifts gastronomy experience non-medical services hotel specialist medical guidelines menu selection patient hospitality food and drink drink selection ipad ordering ward supplies restaurant specialist efz polite manners head of patient hospitality aarau cantonal hospital ksa aarau bahnhof ksa lenzburg ksa frick highly specialized medicine