I came here to say a lot of this. Especially since, as I have gotten into the devops world myself, and there is a bit of an equalizer in that a lot of the big buzzwords are things that most people have kind of similar and easily obtainable levels of experience with.
Chef hasn't been around so long that there are many people with more than a couple of years epxerience....but its also all done in ruby, which is decently easy to pick up at a basic level, especially if you know perl. You could easily get yourself up to speed, especially with any sysadmin background.
If you can make it through the level of the advanced chef courses, which, seriously, for someone who knows what they are doing we are talking, a few weeks here you could be up to speed with most candidates out there. Which isn't a dig on them at all, its just that, most of the experience from administrative work or writing, running services is directly translatable, its really just a new toolbox to get get familiar with; for someone who can already fill admin and dev shoes, its a very natural move