I think you'll find that you can do an APC (assessment of prior competence) in the UK which means that you won't have to do the whole course, just the rating exam. If you're an experienced ATCO that should be reasonably straightforward.
If that's what you're thinking of, why not give Dundee a call and ask them whether or not they'd be interested? The job ad is at:
www.dundeecity.gov.uk
just follow the links to vacancies.