Hong Kong family looking for a long term helper

We are a Hong Kong family of 4, currently residing in Stanley.  Both my husband and I work full-time.  Kids are 9 & 6.  We also have a small dog (no walking required).

Main duties:  Taking care of the kids, grocery shopping, cooking (mainly dinner), housekeeping, laundry & ironing.  

Required skills:  Ability to multi-task; organize the day depending on the daily tasks and accommodating to any last minute changes; experienced with Chinese & Western style cooking; high standard for cleanliness and good hygiene; love for children & dogs.

Our current helper has been with us for 9 years and she is returning home in April.  So we are looking for someone who is sincere and trustworthy; someone we can establish a long term relationship with.