I don't do this anymore. Very draining to be an SRE. I remember one Christmas I worked until 2am because of SRE pages on software that, in retrospect, didn't need to even be up at the time. Google used to give us SRE bomber jackets, and while those were super cool in a nerdy way (I never got one because I wasn't an SRE there), it was clear the org had to really go out there with incentives to get people to sign up for SRE. I love the practice of reliability and building fault tolerant systems, but it's just so draining / energizing at the time, then you realize all your efforts (or at least mine and colleagues' at the large companies for which we worked) went into keeping stupid, unimpactful things from falling over briefly. Unless you're SRE for a real, not startup-tongue-in-cheek "mission critical" system it is absolutely not worth it. In my very cynical opinion, I'd need to be an SRE keeping a NASA rocket working, or keeping the ISS up, or working on some SDV system, before I would consider a system to be really mission critical.