Wai wrote:... but he had a lot of expertise and experience in his field so his skills were in demand, it's certainly not something you could just do.
Exactly. I see two main options to be able to work remotely. One is to start your own business that can be run from here. The other is to first gain experience (so that you're valuable) and your employer's trust (so he knows you'll be productive without immediate supervision), then make the transition from office to home-office. Option two there, of course, requires a desk job that doesn't require much or any field work.
For the first option, freelance software development comes to mind. Still, though, you need experience and expertise, both for the industry contacts to get jobs and to be able to compete with bright Indians and Filipinos who are willing to work for much less than I. I have a friend who does that in the UK, though, and is doing fine. Or start a company that employs Indian software engineers. For that, technical skills would be nice but not necessary. Instead you would need great management skills, good contacts, and money to pay your workers.