I’ve spent two decades building and improving data systems at top tech companies, coaching data analysts, engineers, and scientists along the way. I’ve seen firsthand how poor data quality slows teams, undermines decisions, and wastes effort—and how systematic approaches can prevent these issues. In this course, I teach practical frameworks, SQL-based debugging techniques, and automation strategies to transform messy data into trusted, actionable insights. My goal is to give you the skills and confidence to take control of your data and drive measurable impact.

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