Training 10 weeks basic at RAF Halton, then about 6 months at RAF Cosford, then about 18 months on a Sqn, then a further 12 months course to get your technician qualification back at Cosford
All jobs gone for AMM and Avionics this financial year. However if your guys are keen to apply go via the Careers website so you don't miss out on the next set of processing. all the info on there
If they want to work on Lightning 2 and A400 try ICT trade, they needs lots of ICT techys to keep them going.