>BTW: I am “expert” in cloud by any definition (did at a startup, worked at AWS ProServe, staff consultant at a 3rd party consulting company) and I develop. How hard do you really think it is for someone with a developer mindset to learn how system design works at scale and bring their same developer mindset to infrastructure as code?
It depends! Do you mean clicking in the AWS console and spinning up infrastructure? It takes a few days.
Learning terraform/CloudFormation so it's repeatable? Probably a few weeks.
Kubernetes design patterns and troubleshooting? I feel like it takes at least a few months of hands on and theoretical.
To build infrastructure that lasts, is monitored with an APM as well as infrastructure specific tooling (not Cloudwatch) has cost dashboards set up to account for workloads across a dozen product lines (not Cost Explorer), has a CI CD pipeline automation for hundreds of repos including automatic onboarding of new ones, understands cloud security enough to have designed a tight perimeter with some automation around detection and remediation, has strong network level knowledge and knows how to deal with external vendor/client connectivity options (since you have to adapt to their limitations or demands)... Instead of server babysitting, you know in advance how to prepare the inevitable situation where workloads need to scale, and already have tooling and horizontal and vertical auto scaling either automated or ready to go...
If you know these things after 2.5 years, and I say this fully seriously, you are in some sort of .5 percent elite in this industry and deserve something like 1M a year, or you should be leading something huge.
Otherwise there's a risk here that you don't know what you don't know, which was my original point about over confidence by software engineers when it comes to infrastructure.