Not for the vast majority of software engineers, in my experience. Most teams do have some type of specialization (even CRUD apps often require some detailed kn

Not for the vast majority of software engineers, in my experience. Most teams do have some type of specialization (even CRUD apps often require some detailed knowledge of scale, localization/i18n, etc) but that just leads to the expectation that a generalist will need to spend some months onboarding. I do think our hiring process captures a lot of the skill needed to onboard and be successful in this situation There definitely are a handful of roles that require more specialized backgrounds. I would say that leetcoding for something like that is a disservice to both parties, but I think that is a small fraction of the overall workforce