Principal Engineer Roles Framework
https://www.linkedin.com/pulse/principal-engineer-roles-framework-mai-lan-tomsen-bukovec-142df/
The framework was pretty helpful for us as a team to optimize (or “force multiply” as we say in the Amazon Principal Tenets) the impact of our super awesome Principal Engineer community. We used the role framework to assess Principal Engineer engagement for our most important projects across Amazon S3/Glacier. In some cases, we changed the role of the Principal Engineer.