Thanks for the responses folks, seems QF approached me for a job that doesn't need my skill level or academic level, strange but bit shameful on QF scouting team. They said its a grad15 level role, don't know what that means exactly but assuming it must be junior payscale of somekind.

The job is something I'd like to do, have done before as expert. In terms of money , compared to my current monthly savings in UK, I guess I'd save few thousands QR more. In exchange there would be a significant change in the lifestyle. So still pondering.....