I’ve spent 15 years building and scaling production systems at domains, e.g., fintech, e-commerce, SaaS. Along the way I’ve designed systems, interviewed candidates, and mentored engineers from junior level to architect. I created SysPotter to make system design simple and visual. Here, I help you crack system design interviews, grow into senior and architect roles, and make smarter career moves. Practical, honest guidance from someone who’s been on both sides of the interview table.