Hi there, I have a job offer to work in Jakarta Indonesia. W...

Be careful and do not work for English First in Indonesia. They have a pretty bad reputation in not honoring the contracts and in failure to provide a reasonable teaching environment.

Greetings from Indonesia!
This is bad, that this site does not allow me to include a website link, because this is exactly what I wanted to do. Since July I have been writing notes about the school where I have a misfortune to work, and I wanted to share these with fellow teachers to warn them, which kind of "schools" they can encounter in Indonesia.
Nevertheless, I will try to type this website address in such a way, that it will be possible to enter it into the browser. It will not work automatically, because it must be cleared from garbage.
The address is: (http)(colon,slash,slash)geocities(dot)com(slash)moscowtime, then there is a link on the page to "Notes about SUB".
The experiences that I had in this school are very close to fantasy of absurd, but it all really happened and is still going on.
Best wishes, teachers, and beware of sweet-mouthed employers...

Surely your prospective employer should be telling you about the situation with working visas?