Western family looking for live in nanny

We are a British couple with a small hyper dog. We are looking for a live in nanny/maid who can help us on a daily basis with cooking, cleaning, looking after the dog and then I am due to have a baby at the end of April so eventually helping with this. This person will need their own visa, but we offer a very nice home where we will only be present in the evenings as we work Monday-Friday and won't be there most of the time.