Why Skilled Engineers Still Fail Coding Interviews: The Scorecard Problem

Strong engineers often fail coding interviews not because of poor coding ability, but because they produce little scoreable evidence for interviewers to document. Interviewers evaluate candidates across multiple rubric axes — problem solving, coding, communication, and judgment — each requiring specific, quotable observations. A silent but perfect solution leaves an interviewer with almost no written evidence, while a narrated, imperfect attempt can yield far more scoreable signals. Common failure modes include solving problems without verbalizing assumptions or tradeoffs, and tackling senior-level prompts without demonstrating judgment about edge cases or production risks. Candidates improve their chances by thinking aloud in transcribable sentences that explicitly cover assumptions, tradeoffs, complexity, and test cases.