This is off the back of them getting the jmc/Thomas Cook contract. Bare in mind that they they also did this when they got the Air 2000 contract but within a year half the staff were working for Servisair when Groundstar lost the contract for whatever reason. As for pay, probably between 11-14K depending on the contract (part time, full time, permanent etc)
The question is, have Groundstar learnt enough from the Air2000 contract to keep jmc for more than a year?