Comment by skissane

> The first is that SRE team size primarily scales with the number of applications and level of support. It does scale with hardware but sublinearly, where number of applications usually scales super linearly. It takes a ton less effort to manage 100 instances of a single app than 1 instance of 100 separate apps (presuming SRE has any support responsibilities for the app). Talking purely in terms of hardware would make me concerned that I’m looking at an impossible task.

Never been an SRE but interact with them all the time…

My own personal experience is there is commonly a division between App SREs that look after the app layer and Infra SREs that looks after the infrastructure layer (K8S, storage, network, etc)

The App SRE role absolutely scales with the number of distinct apps. The extent to which the Infra SRE role does depends on how diverse the apps are in terms of their infrastructure demands