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Engineering Insights

Hard-won lessons, system design teardowns, and architecture guides from the frontlines of data engineering.

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Core DEMar 10, 2026

Implementing Data Contracts in a dbt Monorepo

Data contracts promise to fix the silent breakage problem — upstream schema changes that quietly corrupt downstream models. We implemented contracts across 87 dbt models and 12 source systems. Here's what worked, what didn't, and the YAML you can copy.

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