Kind family of 4 looking for helper

We are a family of four with young children. We are HongKongnese but spent time overseas before we came back to settle in Hong Kong. We are considerate, happy, warm employer who gets on very well with our current helper. Our current helper will be retiring to return home at the end of her contract. We treat our helper with respect and care, in return we expect her to be trustworthy and caring to our family too. Main duties are cleaning (3 bedroom flat), cooking, buying groceries and looking after the children. Working hour is from 7am to 9 pm. salary will be based on experience and with year end Bonus depending on performance.