Official statement is here:
Latest news - easyJet plc
Its clever wording - the 330 will be recruited from the current 450 parc/ctc pilots who...
Once they have flown for over 1250 hours with easyJet and completed two years, pilots then join easyJet as permanent employees at First Officer rank.
Unless I'm mistaken this is not really recruitment, merely offering a proper job to those that are on poor contracts. Although it is a positive move.