UUpStepinupstepasia.hashnode.dev·6d ago · 8 min readDoes This ETL Job Really Need Spark?What an AWS DuckDB walkthrough can teach you about choosing a data-processing engine By Upstep · 10 October 2026 1. The question behind a slow pipeline Imagine joining a data team and inheriting a dai00
UUpStepinupstepasia.hashnode.dev·Sep 24 · 9 min readIs the Cheaper AI Model Good Enough? How to Make an Engineering DecisionYour support-ticket classifier works in a demonstration. Then your manager asks: “Can we switch to a cheaper AI model?” You try five tickets. Both models give sensible answers. But what happens to an 00
