Hello Giertom1,
I did some rotation in Polan from Katowice and I met some of the Enter Air crew.
What I know is that they have some Contractors Captains, nice CC girls
, nice Uniform, and charter flights.
I know they require the TR on the 737 but I know as well as that they do some training to the NTR but I think this is a sort of P2f cause they will ask you money for TR + LT .
Assessment:
generally speaking My friend in every Company yuo will join you need to know the basics...as you are not type rated, IR knowledge is a must (fuel, planning, Alternates,holding, Notam, Met ...Etc), Performance, Meteo..etc.
Then maybe there will be a English test, some Psycometric test or a variety of test then some HR behaviour/attidute Interview, and maybe a SIM check.
Sim check again, if not type rated, no emergencies!
normal flight, manouvers Low flight, Interceptind a radial, Holding, Ils/Vor and land.
Why you don't ask them, it's not a shame!