No AWS employee knows “AWS well”. AWS has a huge surface area. If you work on one of the service teams - ie the team that maintains the different AWS services - you are very much unlikely to know the entire AWS surface area and be focused on your team and surrounding services.
It use to be the case if you were interviewing for an SDE position, you were specifically told not to mention specific AWS services in the system design rounds and speak of generic technologies.
It use to be the case if you were interviewing for an SDE position, you were specifically told not to mention specific AWS services in the system design rounds and speak of generic technologies.