Western family looking for helpers

We are a French family with two lovely children, 9 and 8, who have lived in Hong Kong for more than 10 years. Our previous helper has been with us for the past 8 years and she is finishing her contract at the end of the month and we are looking for a new helper to start in July. Our main criteria are someone who enjoys working with children, is kind and firm with them, is self-motivated, able to work independently and most importantly, trustworthy.