AI: Nobody’s in There is 30 short, honest essays on judgment, learning, and work with AI. No hype, no doom, and why the empty machine is good news.
Database Performance Health Check: Six Months Slow, Fixed in 75 Minutes
Six months of slow SQL, fixed in 75 minutes. See what a database performance health check finds, and how one focused 4-hour session ends the guessing.
Data Quality and Observability: A Field Guide in Six Parts
Master data quality and observability in six parts: name the problem, rank the risk, define rules, place controls, monitor for drift, and respond calmly.
You Just Found Bad Data in Production. Now What?
Found bad data in production? Use this data incident response playbook: triage, contain, trace the source, fix, verify, tell people, and review calmly.
It Passed Every Test and Still Broke: Four Signals Validation Never Catches
Every test passed and the dashboard still broke. Data pipeline monitoring catches what row rules miss: freshness, volume, schema drift, distribution shift.
Where Should a Data Quality Check Live? Gates, Controls, and Quarantine
A check in the wrong place catches bad data too late. See where data quality checks belong: ingestion, transformation, release gates, and quarantine.
“Clean Data” Is Not a Requirement: Writing Rules People Can Act On
Clean is a feeling, not a spec. Write data quality rules with a testable check, a threshold, and a named owner, so every failure is obvious and owned.
Count Is Not Risk: Ranking Data Issues by What They Actually Cost
The biggest pile of errors is rarely your biggest problem. Rank data quality risk by impact and likelihood, not row count, and fix what actually hurts.
Data Quality, Data Reliability, and Data Observability: Telling the Three Apart
“The dashboard is wrong” hides three problems. Learn how data quality, data reliability, and data observability differ, and which one you are actually facing.
I Almost Did Not Publish This Book
I almost did not publish this book.
Not because I doubted the ideas.