DataExpert.io Newsletter

A well-architected secretary is 76 agents in a trenchcoat

RAG and note takers won't save your business

May 11 • Sahar Massachi and Zach Wilson

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April 2026

The New Rules of Behavioral Interviews after AI

Our behavior needs to update faster than our tech

Apr 28 • Zach Wilson and Prasad Rao

34

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How do One Big Table and AI fit together

Dimensional Modeling is dead

Apr 6 • Zach Wilson

58

5

March 2026

Understanding Parquet Format for beginners

A walk through of the most important file format to ever exist

Mar 3 • Zach Wilson

94

3

6

February 2026

Databricks is no longer about tuning knobs

Databricks abstracts away almost all of the data engineering skills. Liquid clustering is the first place where things will get messy!

Feb 24 • Zach Wilson

84

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The 2026 AI Data Engineer Roadmap

And how to avoid getting replaced

Feb 5 • Zach Wilson

186

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December 2025

Processing 1 TB with DuckDB in less than 30 seconds

And so can you

Dec 23, 2025 • Matt Martin and Zach Wilson

139

7

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November 2025

Data security shouldn't be an afterthought

A practical guide for Data Engineers

Nov 26, 2025 • Zach Wilson and Karan Dwivedi

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10

SCD-2 considered harmful! Part 2

Date stamp your data!

Nov 4, 2025 • Sahar Massachi and Zach Wilson

104

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October 2025

The Data Warehouse Setup No One Taught You

Storage is cheap, your time is not!

Oct 24, 2025 • Sahar Massachi and Zach Wilson

351

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44

The 2025 AI + Data Engineering Roadmap

Getting a data engineering job is complicated.

Oct 17, 2025 • Zach Wilson

195

6

26

September 2025

Stop grinding leetcode for data engineer interviews!

Landing a role in big tech and “grinding leetcode” have gone together like peanut butter and jelly for the last ten years.

Sep 24, 2025 • Zach Wilson

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