Central London - Nanny for toddler (part time or full time) and after school care for school kid

We are looking imminently (for a year) to look after our son part time, take our daughter to/from school. Someone engaging, fun, loving towards our children and interested in their wellbeing and development. Whilst looking after our son for most of the day, we would also expect that person to undertaking some cooking, laundry. Ideally someone live-in, but we would be open to discuss live out. Our live-in arrangements would allow the person to have their own double bedroom and bathroom on the top floor of our house. We live in Chiswick (Zone 2) near public transport, parks, shops, river. Someone with settled status would be required.