First my usual disclaimer: I'm not diagnosed with AS, but I suspect I'm mildly on the spectrum and/or have ADD. I have enough traits of both that I cannot consider myself NT.
I love repetitive tasks, and it's nice to be able to admit that. I've had a variety of jobs, ranging from making pizzas to refueling B-52s while flying (although technically I never completed the training for that, being ridiculously ill-suited for such a job). I tend to be very unsure of myself and anxious when there are too many variables. Too often, in jobs, I know basically what I'm meant to be doing, but something unusual comes up and I'm not sure how to deal with it. In my experience, if I take the initiative to solve a problem on my own, then I get in trouble for doing the wrong thing, but if I ask for help, then I get in trouble for "not taking the initiative." Consequently, I've dreaded every moment of every job.
The exception is when I have a repetitive task. I had a desk job for a few years in the Air Force, and I really hated it most of the time. However, there were a few things that I had to do each day, which I liked. One of them was removing the carbon paper from a large stack of computer printouts. It took quite a while, but there was a rhythm to it, and it was just physical enough and mindless enough to be relaxing. Years later, when I worked in a pizza restaurant (which is what six years of military service qualified me for), I enjoyed folding the boxes. They come as flat pieces of cardboard, and when things were slow, we'd fold a bunch of them.
The one thing I didn't like about those kinds of tasks was that if someone else was doing it alongside me, they'd want to carry on a chat session about how dull it was. It's clearly socially unacceptable to enjoy that kind of thing. If you say that you enjoy it, that's like saying you are too stupid to do anything more challenging. Well, supposedly I'm more intelligent than most (so I've been told), but for the reasons I mentioned in my opening paragraph, I don't like "challenges" in work situations. Leave the challenges for hobbies, where there is no one to write me up for not living up to some weird standard.