The mindset of an SRE should be simple:

You built it, you run it

https://www.atlassian.com/br/incident-management/devops/sre

You can be an SRE, DevOps, Developer, QA and Product Manager at the same time. Don’t put yourself in a silo Think about your customers, users, colleagues and communities around your service The team should be able to understand their service end-to-end - Quality, cost, scope, security, compliance, etc …

YOU KNOW YOU’RE AN SRE WHEN…

…you find yourself buying extras of everything because two is one and one is none.

…you are involved in a new feature from design to deploy.

…Production readiness reviews are something to look forward to.

…you wonder what your power company’s SLO is.

https://learning.oreilly.com/library/view/seeking-sre/9781491978856/part03.html