With a decent enough background like your's; the only thing i'd suggest is that you come here only with a good job already in hand...what i mean is dont come here and then look for work...get headhunted into a good role and let them bring you to qatar on their steam..im literally a puppy in my finance\accounts career and am ill equipped to advise you, but id say that depending on the company, you could expect to land a pretty lucrative role..i'd personally not bother shifting for any less than a 50 percent hike in my disposable income..qatar is expensive so you need to evaluate your uk scene against qatar and see if its even worth it..either way, best of luck..