I switched technology careers at 30 myself; I went from help desk technician and system administration to web development, and I'm quite satisfied with the results. Of course, it probably helps that I'd already been trying to get into web development for the better part of the preceding decade... but that's not the point. The point is that it can indeed be done, if you have the skills and the drive to get where you want to be. Most jobs outside of the education field and higher sciences aren't nearly as difficult to break into, as people usually think.
My advice to you would be, very simply, just apply for the job you want, and see what happens. It'll most likely take more than a few interviews before you find someone willing to take a chance on you, and of course, you'll probably have to start out at an entry level position... but if you're coming from the educational field, then you probably won't take too much of a hit to your paycheck.
Frankly, Nike's advice actually works, here: if you want to get a different/better job... just do it.