Site reliability engineering (SRE) is a discipline that incorporates aspects of software engineering and applies that to operations whose goals are to create ultra-scalable and highly reliable software systems
A site reliability engineer (SRE) will ideally spend up to 50% of their time doing “ops” related work such as issues, on-call, and manual intervention. Since the software system that an SRE oversees is expected to be highly automatic and self-healing, the SRE should spend the other 50% of their time on development tasks such as new features, scaling or automation. The ideal SRE candidate is a coder who also has operational and systems knowledge and likes to whittle down complex tasks.
https://www.oreilly.com/ideas/what-is-sre-site-reliability-engineering
