When mistakes cost real money, everything changes. I've built annotation pipelines where errors didn't just affect metrics—they affected millions in revenue. That kind of pressure forces you to rethink everything about how you handle data. No shortcuts. No "good enough." 💎 In finance operations, we couldn't afford annotation mistakes. So we built multi-layer validation: automated checks, peer review, and expert audits. We treated annotators as knowledge workers, not button-c

Raw accuracy is overrated. You can have a 95% accurate model that nobody trusts. I've seen it happen repeatedly—engineering celebrates the metrics while business users ignore the output. Why? Because they don't understand HOW the system reached its conclusion. 🎭 When I reduced customer-reported issues by 90%, the breakthrough wasn't just better models. It was building systems where users could trace every decision back to its source. Explainability isn't a nice-to-have; it's