Chinese family with 2 kids

we are a family of 5 people including 2 kids of 4 & 6 years old. we are looking for a caring and responsible helper and the main duties are below. - taking care of kids with eating, bath, and daily errands - sending and picking up kids from /to school - cooking (chinese cuisine) - cleaning and laundry - marketing - playing with kids and simple tutoring the helper has a separated room with bath room. we live in Kai Tak area. reference letter/ contacts highly preferred. salary negotiable. thank you!