Family looking for full-time Helper

We are an international family, I am Australian and my wife is Chinese/Japanese. We have two daughters, the eldest is 10 years old and her younger sister is 7 years old.

Due to our other outside work commitments we are looking for a full time helper.

We are looking for a nice person who can take care of some household tasks and duties like cleaning, grocery shopping, cooking, laundry and take care of our children.

Thank you!