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Spark Architecture Simply Explained

5d ago · 9 min read · You have been using Spark for months -- running notebooks, submitting jobs, reading docs. But when someone asks you to explain what actually happens when a job runs, you find yourself stalling. The co

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Claude AI Is Only as Good as How You Use It

May 23 · 10 min read · I use Claude every day. Not for novelty -- for actual work. Architecture discussions, documentation drafts, learning new tools, stress-testing design decisions before I walk into a meeting. It has bec

OLTP vs OLAP: The Difference Every Data Engineer Should Know

May 15 · 10 min read · Every data pipeline you build starts at an OLTP system and ends at an OLAP system. If you don't understand the difference, you'll design the wrong thing. This post is the foundation. If you've read th

Star Schema vs Snowflake Schema: Why the Real Difference Isn't What You Think

May 14 · 10 min read · Your dashboard is slow. The BI team keeps complaining about confusing joins. Analysts don't trust the numbers anymore because "customer region" exists in five different places. At some point, every da

Claude Code for Data Engineers — What I Actually Use It For

May 9 · 11 min read · I didn't expect to write about AI tools. This blog exists to document what I learn about the data stack — dbt, Databricks, dimensional modeling, the usual. But Claude Code has quietly become part of m