I had your dream job. The catch, though, was that I was so passionate about my job that I pulled all nighters on and off for years. In the end there was nothing to do but petty maintenance as all the issues were automated away, I kept looking for more things to do, fun things.

Ultimately I got bored and left.

I was a “sysadmin/devops”. If that helps, though usually developers don’t think they need sysadmins anymore.