Alternative for "dead-end job" that is not disrespectful

You could say "I don't want to be a office worker", but that would include more that just dead-end jobs, or maybe "I don't want to be a menial employee". Somewhat negative, less so that dead-end job, or "Temporary employee". That would probably be the one you want.

A tip for looking through a Wikipedia page, look at the sources as well!!

EDITS: Seems like your example of a dead-end job will get you somewhere, that makes a broken question. From italki.com, Question here
"If something 'won't get you anywhere' ,it means this thing is useless and it is not worth doing it or pursuing it. "
And that is some copy pasta for you!
As you can see, your job is still worth doing, it does not fit very well with dead-end job.

Limited growth opportunity seems best, but the asker(Sp. Cker. says i cant put er on, HELP) is not satisfied.

It doesn't seem to be in usage, but I would suggest career path terminus (or possibly "career track terminus") as a neutral description of farthest place you will reach in a given career. The analogy is with "terminal degree" meaning the highest degree in a given professional track.

This is a prestigious position, but be aware it's basically a career path terminus.

"Terminal career" would be briefer, but that sounds terrible. If you wanted something similar with a positive (rather than neutral) sound, you could go with "career path apex."

Though it it hard to find a formal definition, I think steady job or stable job fit the bill.

Both give continuity, both lack excitement.