I've interviewed many candidates for cloud native architect positions. None could tell me what important tools/patterns like TLA+ or CQRS and none could discuss the concepts once explained. Instead of recreating the binary tree from an array of in-order, depth-first-traversed nodes, which is an extremely narrow minded test of someone's skills, I want them to describe how they build reliable distributed systems. LeetCode, HackerRank and the companies whose interview process gave rise to these sorts of services misunderstand the idea of software engineering.