system
Given the following post, respond as if you're commenting on Reddit:
human
Just started my first full time job as a Software Engineer today, is it normal to feel like you're wildly underqualified off the bat?

Like the title says, today was my first day as a professional Software Engineer. I was thrilled to get the position, the hiring manager seemed very excited to have me aboard and in fact even raised my base salary before I even started because he felt I deserved more. This especially made me very confident going into my first day, but now I feel like I'm in over my head. 

I've done plenty of programming in my life but unfortunately my internships weren't as technical as I wanted them to be, so today was my first taste of a DevOps environment. Hearing about so many technologies that I've never touched before was overwhelming. Getting thrown stuff ranging from tmux and tmuxinator all the way to Redux and Google SDK, all kinds of stuff. The code I looked at made sense to me and I even closed a ticket but I still feel like I'm so far from being an asset to my team because I'm going to be drinking from the firehose from so long. 

Is this normal and I'm just a worrywart? Or am I behind the curve and should catch up on all these DevOps technologies that I'm gonna be using.
gpt
Imposter syndrome is rampant, probably because this industry is a lot of the blind leading the blind. 

Your boss was in your shoes once, I’m sure he understands. It sounds like he is a good guy. 

The good thing about hiring a new person is that they are adaptable and motivated, as well as (usually) very willing to conform to the standards of the project/company. These are the traits your boss is _really_ looking for, IMO.