I know nothing about animation jobs. I have about 18 years in sys admin jobs, mostly enterprise. Let me add to what others have said.

1. The routine part is there, but goes smaller with seniority. When you are junior, you’re being bossed around and you’re doing the most tedious things
2. You can help #1 with automation. I’ve heard about people automating themselves out of the job, but never saw it with my own eyes. It may help you with your career in a right company, though.
3. Responsibility also comes with seniority. Unless you sign up with a really shitty company, junior admin will not do risky things unsupervised and will not be made a scapegoat if manages to screw things up.
4. Weekend and night work :( I know, somebody already said that, but I think it’s the only thing that I really dislike about the job.

2.5G with SFP+ port might be tricky. You want to be sure that the SFP+ module you buy does support 2.5G explicitly - don’t assume that any 10G module can negotiate that speed. This might work.