Is any one out there a personal trainer? If so, what do you have to do to become one. I think it would be awesome to be one. Here’s what my ideal day would look like: Train someone; eat; train; then do it all again.
Do a search and you will find a plethora of posts about it.
I could go into detail, but to answer your only question: You need to get certified by a recognized certification to work at most gyms
Google it, really I’m looking into it myself.