Is possible to get an IT-related job in Hong Kong?

It's very possible - if you have the skills & experience that they're looking for.  If you're a student you'll probably have to get in line behind the thousands of applicants who have been doing the job for years.

Being a foreigner doesn't matter as long as the company you work for is willing to jump through all the government hoops to get all the right paperwork done.  It's better if you do something a million Chinese people can't already do.

Thanks a lot for your reply!

So maybe i should aim to find a person who is already working in IT industry to find out what are the hottest employee profiles.

I wonder if spanish language is useful for them.

Spanish in Hong Kong is like chocolate on pizza.