Hong Kong Family looking a helper to take care 2 children

We are a family of 4 members, 2 kids 5 and 3 years old.  Looking for a helper with at least 2 years of experience in HK is required. Experience outside of HK will also consider. 
we are looking for someone warm and friendly, with attention to detail -the priority is looking after the children, sending/picking them up to school and after-school activities, cooking as well as day-to-day housekeeping.