An Australian Family looking for full-time helper

We are a easygoing Australian and Japanese family, 2 daughters aged 4 years old and 20 month. We live in Sai Kung. We are looking for full time domestic helper who are an honest, positive, happy and pro-active person.  Main job are taking care of the house and children so need experience with children. Ability to speak English. Preferred a person who are married, having child and age around 35 to 45 years old. Should come with no debts.