That's what I've done for the past couple years... Alignment tech. It can be good. Some days are slow and some not. (Depends of shop of course). I was dubbed "Lightning" cause I would knock them the f' out. lol. You make your money really on caster/camber that is not "adjustable" from the factory. Most McPherson struts designs need to have the spindle to strut holes elongated for camber... that's atleast 45 mins a side. Some rears (PT Cruisers and such with solid rear axle/front wheel drive) need shims, which always paid me an hour a side. It really depends on what's coming in the shop. At Ford I made a killing off Tuarus's and Windstar/Freestars. Strut plate needed to be air hammered off, 1 hour a side. Plus the vans needed the whole cowl taken off to access the strut plates, which paid another 30-45 minutes a side.
Like said, it can be good, just depends on what comes in the shop and what the writer/service manager can sell. If you're just doing "toe and go"es, then you really won't make too much. I've always made 10 bucks an hour, plus 10-15% commission on front end and alignment work.
Nick