A reader just sent me his resume. Okay, folks - please note. I can't possibly know everything about every industry in Singapore. So much as I would like to be helpful, I really don't think I am in any position to give specific career advice to all of you.(Wow, that sounds so INTJ. See the 1st paragraph here).
If you wish to get a job in Industry A, you should talk to people who are already working in Industry A. They will be the best people to give you a sense of what the job market is like, for Industry A.
You can also try talking to job agencies and recruiters who work within that particular industry. For example, if you're an IT guy, talk to people like this blogger. These are the guys who will really know what kind of jobs and what kind of salary you can get, based on your experience and qualifications, and what kind of employers would be interested in you.
Also, people, if you're not sure how to make your resume look good, please do yourself a favour and borrow one of those "how to write a good CV" books from the National Library. The resume does matter. Use yours, to present yourself in the best light possible. Good luck.