Easyjet, Jet2, BA citiExpress, FlyGlobeSpan(DB) , Scot Airways, Loganair (DB) BMI (DB), FlyBe, First Choice (S), Monarch (S), All have bases at Edinburgh. Glasgow has the same bunch but include MyTravel (S), Air Scotland and i believe a few more, but im sure someone else could update the Glasgow list!
DB= Dual Base
S= Seasonal
Easyjet i dont think will be recruiting for sometime, they transfer crew up from london who are on quite a long waiting list.
BA CitiExpress recently finished recruiting in Edi but i dont know if they got all they needed.
Globepan the same. They are adding new a/c all the time.
FlyBe are recruiting for GLA and EDI i believe.
Scot Airways are expanding to larger jets at the moment so i think they might be needing extra crew
All the charters have finished their recruitment for this summer.
BMI operate a dual base so you need to be able to drive and get to both airports in around 90 mins.
Loganair too operate a dual base system.
Air Scotland are talking about getting Tristars but i dont know if crew will come with the lease or they will hire new crew.
But i think that covers what i've put in im sure there are more airlines that are based out of the two!!
Good luck!
EB