In a purist approach there are clear guidelines for DevOps and SRE but these are seldom followed. In all the cases I have seen personally, for a developer both

In a purist approach there are clear guidelines for DevOps and SRE but these are seldom followed. In all the cases I have seen personally, for a developer both DevOps and SRE are support teams. Major cultural changes in an organisation especially at the development end is very hard to make. What has worked for me is having Ops people with some development experience work as DevOps Engineers who work with Dev team for doing whatever is required for making development and release easier. And the SRE team work with development teams for doing whatever is required for making production support easier. Once we have a fairly seamless and well defined pipeline between committing code to supporting in production, the DevOps and SRE Engineers can merge with Dev or Production Support teams depending on their skill set