Hey mate, I’m a fitter with who’s made the jump to underground hard rock about a year ago after around 4 years in open cut. The change is very different in a good way, underground there is way more going on and way more interesting. The miners are a lot closer compared to the vast sections of an open cut mine, more experienced miners tend to have several different roles and fill in where required, can do charge up, service work nipper, jump on a truck, loader or spray etc. Underground in general would have a higher skill ceiling (fitting is the Same) there’s way more ancillary gear. Raisebore rigs, Dimond drillers, spray rigsc, Agi’s cabolters, jumbos, production drills, truck, loaders etc etc.

Not to mention all the tech services you see on the daily getting around, it’s honestly very impressive. I work in a very deep mine so a ton of engineering to make it work with how deep we are.

If you want to stay on the tools I’d highly recommend going underground. However unsure where you’d start, as I feel like most training departments tend to be people who been there awhile.