Wow, I envy you; I'm like from the Stone Age, so I'm not internet savvy or computer literate at all
I can't say for sure, but getting jobs is very difficult here in Japan too, and companies always want someone who
can start working without training. In this sense, experiences would speak much more than university degree.
IT industry might deal with a lot of highly confidential documents, but so does any industry. So, even if you
get volunteer position, you just might need to sign NDA. I don't see any reason why IT indutry avoids volunteer
for such reasons.
I think good relationship with your boss would boost your chance, regardless of academic background, again.
So taking internships and/or volunteer would be great for you to build the foundation.
I myself experienced a lot of different (and difficult) job huntings, so I know how little academic background
means unless you're newly graduated. If a company is wise enough, they'll hire someone with volunteer experiences
than trophy backgrounds without experiences.
Oh, also, billingual is another advantage for you, so don't forget about it! Proving your proficiency in Japanese
would be an asset! And, that's where we can actually help!!!