Is it hard to get job in jakarta, Bali?

Hi,

I have BA degree in business management. Last 5 years I was working in it field as project manager, UX manager. Basic knowledge of online marketing. Any suggestions where to apply and how is hard to get for foreners

Hard but not impossible.
The basic rule -

You must get a work permit, those only being available to people capable of work an Indonesian in unavailable for.

If your skillset is in short supply here you're in with a chance of a well paid job.