I've had to work at start ups where I was one of the initial developers (and the most experienced in the team) so I've been forced to learn a lot about Sysadmin

I've had to work at start ups where I was one of the initial developers (and the most experienced in the team) so I've been forced to learn a lot about Sysadmin and design (and a lot of surrounding dev tools for instance) but all in all - knowing more about sysadmin has made my dev experience change - I think a lot more about how it's deployed, how it works in prod, how to get data to improve my code and so on. I do feel all devs at one point should have some sysadmin experience - if not professional, then informally. That said, sysadmin is strongly divided into 2 types of tools - configuration and code. I love tools that can be coded (as an example - Gulp), over configuration (like Grunt) - as they generally have a lot less undocumented "gotchas" and getting started is generally a lot more simple. (I'm looking at you Webpack!!!)