Chinese family of 3 looking for helper

We are a family of 3 looking for a positive and caring helper (who has finished contract in hk) to join our family in September 2023. We have a 4 year old boy and we both have full time job. Grandparent will come and help take care of the boy from time to time (mainly in the afternoon as he has school in the morning). We live on the hk island side and helper will have separate living space with window. Main duty is taking care of my son, household chores and cooking (simple Chinese dishes will do). We hope the helper can work independently and have a positive attitude. No car, no pet and holiday on Sunday is ok. Offer birthday leave too. $4800 per month with year end bonus based on performance. No food allowance.