Just a heads-up. Commercial dog care is regulated in Switzerland. Depending on the how the dog carer has structured the business, he/she may need to have the BFA certificate or Tierpfleger diploma, and in some cases may be required to be registered with the cantonal Veterinäramt.
Or your carer may need to do the SKN with your each of your dogs if working with them for more than 3 months. As someone with the above Ausbildung is hard to find outside of kennels or a 'Hundehort', this is what most people I know do.
(Non-commercial care is still not regulated, and does not require any courses or registration.)
Because of dog care has now been made 'professional', it is can be difficult to find a someone compliant with the TSchV who also does housework.
Hope you find the right solution.