Notes on system design interviews, tradeoffs, and what actually gets tested.
July 18, 2026
We built this whole product assuming you already knew what an API Gateway was. That was a mistake for anyone actually trying to learn.
ReadJuly 18, 2026
Static diagrams and rubric scores don't test the skill a real system design interview actually assesses: reasoning under uncertainty, under failure, and under scrutiny.
ReadJuly 18, 2026
Mid-Level, Senior, and Principal aren't just harder scenarios with bigger numbers — they're different bars for what counts as a good answer.
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