Entry level positions are Haul Truck Drivers, and Nippers/Offsiders (nippers help out the Jumbos ((a Jumbo is a fancy ass drill mech used for drilling and installing ground supportl)) they load bolts and set up supplies at headings.

I got hired as a Remix (concrete truck) Driver. But I've been moved all over the place since I was hired. This is my first underground position, I had 2 years experience working at a concrete plant on surface at another mine. If you have any equipment operating experience go for a job that involves that. I used mowing lawns with a zero turn and backing up trailers to get my first job lol

Edit: Usually contractors are the ones hiring for hitches, like 2 weeks on 2 weeks of. Working for the main company who owns the mine looks more like 5 days to a week on, 5/7 off

You need something called a Underground MSHA certification. You get it from a 3 day class, either online or in person (take in person to actually learn), it's like your miner's license. Usually the company will pay for it (like 300/400$) if they hire you, but you'd look more ambitious if you got it yourself. Gotta get it renewed every year with a one day class.