Writing

Notes from building data systems.

Architecture, reliability, performance, open source, and the practical tradeoffs behind production data platforms.

Aug 19, 2026

Designing Reliable CDC Pipelines on AWS

A practical architecture for handling full loads, updates, deletes, late-arriving changes, and replay without turning the pipeline into a collection of special cases.

Data EngineeringAWSCDC

Aug 18, 2026

Why Row Counts Aren't Enough for Data Quality

How freshness, historical baselines, null rates, duplicates, and distribution checks can catch failures that a simple row-count test will miss.

Data QualityObservabilityData Engineering