Nanny Needed For My Children - Full-time / Part-time

We are having a wedding and want to offer our guests the option of childcare in rental on the property . There will be only 3 children that need to be taken care of (2 siblings 3 and 6-year-old, and a single child 2. 5-year-old). Ideally we would like the person to already come over on Friday 20. June during the day to meet the kids, to make the process easier of Saturday. Of course the 1/2 hours on Friday will also be paid. One of the kid speaks only german and Portuguese, so if you can speak any extra language is for sure a plus (even just spanish). Thank you