I am in the IT industry in HK used to work for a bank(HS). I got to warn whoever want to join the IT industry in HK that you need to prepare for long working hours (I once need to work from 8:30am to 3:00am for several days). You will need to pick up different coding skill and produce results ASAP. Forget about social life and time off is a dream. Also you will have to put up alot of crap from your users and managers.