FYI my English was terrible (it's still not awesome TBH) but it didn't not prevent me to find a job abroad. You should just apply when you see an interesting opportunity.

My first interview in English was over the phone and it was really stressful. It was enough to go to the second round (I didn't get the job though).

The upcoming interviews will get better. If you read HN and comment in English, that's enough to give it a try.

You haven't written that much, but so your English is certainly better than the OP's post.

You probably already have the basics to make the jump and then improve those language skills on the spot.

Why don't you try updating your monster account first, or uploading your cv elsewhere? You will eventually get called by agents and convincing them that you up for the job would be a very good test to your language skills.

I'm also an foreign IT professional coming from Portugal, so good luck my friend. If we made it then you can do it as well.

Yes, try to speak English more frequently and read and write as much as you can.When i arrived my English was not brilliant but with time you will get it. Try to prepare your interviews with advance and write the topics that you want to mention during the interview.