Data Renegades

Ep. #6, From Big Data to Curiosity-Driven Insight with Roger Magoulas

12 snips
Jan 13, 2026
Roger Magoulas, a seasoned data industry leader who helped popularize 'big data', dives deep into the complexities facing data organizations today. He reveals how overwhelming tool pipelines hinder insight generation and advocates for a shift towards curiosity-driven insights. Roger shares his journey from early data warehousing to launching Strata and highlights the importance of storytelling in analytics. He also emphasizes hiring generalists and leveraging AI for efficiency, all while stressing the value of curiosity in data roles.
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ANECDOTE

Broken Feed Led To A Weekly Newsletter

  • Roger missed a broken feed and fixed it, then turned the fix into a weekly analytics newsletter for O'Reilly.
  • That newsletter grew into a company-wide resource that delivered contextual insights and questions.
ADVICE

Use LLMs To Generate Deterministic Code

  • Use LLMs to generate deterministic monitoring code and tests rather than for raw answers.
  • Roger advises prompting LLMs to write SQL or programs that monitor pipelines to increase reliability.
ADVICE

Write Readable, Modular SQL

  • Format SQL clearly with modular CTEs and no SELECT * to make queries maintainable.
  • Roger prefers columnized, CTE-first SQL so successors can understand and maintain code.
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