Expect the most beauracratic administration you'll ever see. With University systems, the administration ppl are the ones who stay forever and gain more power/control everytime a faculty person leaves and they fill the power void. And the new person to fill the faculty position just accepts that that's the way things work.
Likely you'll have good job security, but the pay will suck.
If you are competent and they find you indespensible, then tell them you are doing contract work for other companies and that you need to move to a contract position.
The contractors generally don't have to follow the crappy pay-scale of other positions. And if you settle for a pre-defined position, then it will have to fit in a heirarchy that the admins will make certain that you are as low on the rung as possible. Be a contractor, and they will think they are blessed to have you spending time there.
Trust me, I was a full-timer getting paid crap and no voice. They made a royal stink when I wanted a minor promotion. Now I contract w/ University and make the same amount but work 1/4 the hours, and they feel lucky for having me. lol, cause i'm basically doing the same job.