Google SRE too according to https://landing.google.com/sre/sre-book/chapters/managing-incidents/ https://landing.google.com/sre/sre-book/chapters/managing-in...

Google SRE too according to https://landing.google.com/sre/sre-book/chapters/managing-incidents/ https://landing.google.com/sre/sre-book/chapters/managing-in... And as everyone knows Google have a lot of chat products!