Data engineering workloads are among the most expensive cloud line items. This article covers the concrete cost optimization patterns gaining real traction in 2026: zombie query detection, spot instance strategies, compute-storage separation, and FinOps practices that actually work - with numbers and examples.

Meta published details on a system that uses 50+ specialized AI agents to auto-document its massive internal data platform - going from 5% to 100% code module coverage. A technical deep-dive into what tribal knowledge really costs and how one of the world's largest data organizations tackled it.