If you would really like QA without the customer-facing aspect, the only industry where QA is a frontline role is really in healthcare. Medical devices have to go through extensive governmental regulations and this is where QA would actually be considered a frontline role.
You will make less than a programmer while being expected to possess extensive programming skills. Where developers produce code, therefore product, therefore generating earnings and profits, QA is a cost center and does not put revenue on the books. Thus, QA gets laid off more often and you can expect to work more as a contractor with no benefits.
Be prepared to spend much time explaining how the job provides value to managers and engineers over and over and over again. You need to present good data often, and be a strong salesman for your work. Expect to hear things like 'You mean you just play with the software?'. Have a good answer ready at all times.
At many shops, if a customer finds a single bug and you missed it, even though it won't reproduce on your test configurations, everyone will consider you a failure, in spite the value of your overall contribution. For some reason this never affects the developer who created the bug.
Now, if a legal precedent is ever set that software companies are held liable for their products, QA will become front line in a damn hurry.
Write about it on a blog or some-such, to demonstrate what you've learned and what you can do. Try to distill general testing advice into longer articles.
You also might try offering your services here on HN as a QA contractor. I can imagine someone being interested in paying for a few hours of another person's view on their product.
Just some ideas! I've done a lot of testing work, though I've kind of fallen into it accidentally. It's fun for a while, but I don't think I'd want to make it my full-time job.