Looking for a helper

We're a family of four just moved from Shanghai to Hong Kong. My husband and I are both software engineers. Our eldest daughter is studying at a university in Beijing who only comes back to Hong Kong during winter and summer breaks. The younger brother is nine years old . I currently works in Shanghai and only returns on weekends. I’m looking for someone to help taking care of my son's studies and daily life, plus handle household chores. Main tasks include picking him up from school, making sure he finishes homework, preparing breakfast and dinner for him and my husband, and tidying up when no one's home during the day. I’m hoping to find a caring and experienced lady to help me manage household matters. I expect you to commence duties at the earliest possible time. I’ll treat you as our family. I can provide you a independent standard room. Our previous helper in Shanghai stayed with us for 6 years and we got along wonderfully.