It generally won't hurt. FWIW, as a US citizen working in tech my whole life, only my entry level job was from a connection.
Now for the bad news - it's really, really hard to get a job places without living in that city. Much less country.
That said, big tech is so hungry for talent they put the resources into relocation, visa support, etc. That would be my suggestion - look at the big tech (Amazon, Apple, Google, Facebook, Netflix, MS, etc.)