h?! Well, in their job adverts why do BA say - an ATPL which has been acquired in the UK then?
Natstrackalpha
Which part are you having a problem understanding?
I too can confirm, that indeed, there are very many pilots within BA that have gained licences outside of the UK. Some recently have trained at Jerez, Spain. This, however would be under a UK FTO. Others have trained in New Zealand, Arizona, need I go on? These pilots still hold a UK issued EASA licence.
Other DEP's have come from a varied background. Once you have experience on JAR/FAR 25 types of aircraft and a higher TT, nobody cares where a licence was gained or issued.