Right now, Europe is dead in water WRT flying jobs. (A bit like Australia I guess).
However, historically, it has rebounded faster than Australia, especially with the jet jobs.
But it's not a case of "I have a CPL/IR with 250 hours, where's my jet job?" - not going to happen unless you're very very lucky.
Most low houred jet FO positions go to the tagged integrated courses.
Converting the licence will take a while and a lot of cost too. (Not to mention the UK/EU Brexit bunfight).