>"If I ask to determine whether an array contains two numbers that add to zero, a competent engineer should be able to give the naive answer -- a doubly nested loop -- in ten seconds, or at most a minute."

A competent engineer or just one who's practiced HackerRank questions and mastered the cliche choreography of the SV interview format?

"Think out loud! We want to know how you think! Ask clarifying questions! Start with the naive solution! But oh also please do all of these things within an arbitrary time restriction known only by me if you want to impress me."