Western Chinese family looking for a long term helper

We're a family of 4 hiring a live-in helper to stay with us for at least 2 contracts. We live in the centre of New Territories where it is very convenient to go shopping and marketing. Our flat is just under 1000 sqr feet with a balcony. Helper is given her own room and bathroom. We re a family who cares about healthy eating so cooking skill and high standard of hygiene is highly important to us. On top of that, the helper must enjoy working with children. 

Key duties include the followng: 

• Take care of the 3.4 years old when the parents are busy
• Assist in bathing, feeding and changing the 6 month old baby 
• Work alongside madam to care for both chilren
• Cooking, meal planning, marketing, pick upKe parcels from time to time
• Keep the flat tidy and clean at all times 
• Laundry and ironing