Western family looking for transfer helper in Singapore

We are looking for a domestic helper that has experience taking care of babies  (or has her own). We are a Mexican-British couple with a baby to be born soon. We both work in the University (NTU) and the main duty would be to take care of the baby and do some house work. We offer SGD$800 per month, public holidays free, 1.5 days free every weekend and 20 paid week days of holiday when we travel  (usually for Christmas and new year). Ideally start in June but we are a bit flexible. We rather people that have some positive reference from previous employers but we are open to talk to anyone.