If you are going to do this kind of work, it is better don't mention your background, just mention you are interested in this job and have experience for it. It doesn't help to mention your background, just sounds silly.
Whatever you were in homeland, now you are looking for the nanny/housekeeper job, you should adjust your own attitude. Nobody can offer you free lunch, 1500.00 per month cash is a very generous pay.
If you work for some other nationality, you cannot stop within working hours, the employer just cannot let you stop one minute. If you don't believe, try it.
大陆"知识份子"来当保姆,让人受不了