I've been doing this gig for a long time, and have worked on my share of "interesting" problems, but even while working on interesting things, the work that I perform is the rote, mundane day-to-day tasks of moving data around, gluing libraries together, all to prepare some work unit for the "interesting" stuff.
Think of it this way - an architect designs a house, it's fun, creative, but the work of actually building a house comes down to sawing a lot of wood, and hammering in a lot of nails. Even if we come up with some really cool solution to some difficult problem, the work of implementing it will be like building that house. Computer development is closer to a craftsmanship position than anything else, as pretty much everything is a one-off.
"Interesting" is also subjective. Have you thought about what interests you? Do you have a hobby or activity which excites you? If you find a job that intersects with it somehow, you will have a much more interesting job, subjectively.