Are there any country outside U.S. that pay more for software job? I've looked before, but I didn't find any, so you'll have to figure out a way to quantify quality of live improvement in dollar figures.
There's tons of jobs in Canada that pay better then software jobs in North Dakota... But in pure dollar amount, you're not going to beat a Google or Facebook job in SV. Best you could do is work remotely for an SV company.
That said, remember that if you're an actual american citizen, they will tax your foreign income and a programmer with a lot of experience can hit revenues where they actually have to remit money to the IRS in addition to the cost of compliance (which can itself be significant.)
Expect to be paid less but that money will go further - e.g. if comparing with Silicon Valley, there are many places worldwide where you'll be able to afford a much larger, nicer home and more services while earning a much smaller dollar amount.
In general, there's a scale/tradeoff of this, and California is on one extreme of that scale - there won't be any country that will pay even more, with the possible exception of some Saudi contracts or similar niches.
Yet is extremely more expensive in terms of cost of living.
It cheaper to fly to Los Angeles, buy Adobe Suite ( the old one when discs were still around) and arrive back to Australia rather than buying it in Australia.
