I know a NSer worked in Toulumne Meadows (the high-elevation portion of Yosemite) this past summer. While I was there on a climbing trip I saw his car in employee parking at the store/grill many times with a NS sticker in the window. Never did figure out who it was.
I wanted to give this a shot at one point but I'm fucking terrible in the heat. I was more a cold weather guy for ever, but some of my head injuries fucked things up and I over heat super easy. Plus working year round in the cold, I feel it's probably not a good gig for me.
Seems like it would be an awesome experience and something we def need more people doing. Unfortunately doesn't seem like the wildfire issues are going to get any better. I hope they do, but I ran into several good sized ones just driving this year.