[Chyzwar]

Normally, you would interview someone on problems that you want to solve. You would want to hire someone that will help with business challenges by providing specific programming expertise. Requiters do keywords search for a reason.

Problem with Big 4 is that these problems are on such scale that you cannot possibly expect anyone knowing how to solve them. In the same sense your experience is irrelevant because these companies have internal tooling and frameworks that are mostly specific to problem domain.

Algorithms questions test two things: 1. How you think under pressure. (culture fit) 2. Dedication, because you need to waste weeks on preparations (corporate slave).