Ok, you've "arrived in the UK" no doubt to a fanfare of trumpets, but, the first thing you have to do is convince a UK Airport that you aren't going to flounce off in a fit of pique if you don't get what you consider to be rightly yours....
Your qualifications and experience elsewhere count for nothing unless it's in the UK, most non NATS ATSA posts in the UK are internaly advertised and filled internally at the airport itself, occassionally speculative CVs find their way into the system, but not often.
Unless you become a UK citizen, You face the additional hurdle of getting a work permit for permanant employment and an exhaustive security background check, neither of which a UK employer would fund you for.
Apart from that, you're in!
