Nobody expects you to walk in knowing the handheld or the station layout. What gets you hired is a clean record and proof you can handle long physical days, and the rest is learned in the van. The skills below are in the order that pays off.
Delivered packages to customers on assigned routes.
Delivered 180+ packages a shift across a 140-stop suburban route, kept a top-tier scorecard rating for 20 straight weeks and ran 3 rescues a week for newer drivers.
Usually not. A valid license, a record you're not embarrassed by and some sign that you can handle physical work are enough for most contractors. Training and a ride-along cover the rest.
Pacing. New associates either rush and pick up camera alerts or slow down so much they need a rescue. Loading in stop order and keeping a steady rhythm between stops fixes most of it.
Not for this job, since parcel vans generally don't require one. It becomes worth it if you want to move into larger trucks later. Requirements vary by state, so check with your state's licensing agency before you pay for training.
Mention any time you rented a moving truck, drove a work van for a trade job or hauled equipment for a church or school event. If you have none, say so honestly and ask about the ride-along. Managers would rather train a careful car driver than fix a confident one who backs up without looking.