It is not written on the announcement, but of course
Español is required at Iberia Express.
If you do not write your C.V in Spanish and level 4 Spanish , I doubt that you will be called for an interview.
Will Iberia negotiate a deal with the SEPLA Iberia pilots or not for Iberia Express ?
Would Iberia´s first choice be Clickair conditions or second choice agreement with SEPLA Iberia or third choice Vueling´s conditions ( collective agreement) ?
Iberia Express could also contract out Vueling pilots or not ?