You will need to check, but as far as I am aware you cannot hire a maid from your nationality.

Now if your wife is Indonesian and you are all on her sponsorship, she will be the primary sponsor of your maid, which means being Indonesian herself, she probably won't be able to hire an Indonesian maid.

Do you plan on being on her sponsorship permanently? Or getting your own if you get a job. It might be better if you took the maid on your own Visa if you are sponsored seperately.