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3 Production GenAI Lessons From Building a RAG App on AWS

This story is from 2026-09-26. It is preserved in the archive; the latest stories are on the live feed.

I recently passed the AWS Certified Generative AI Developer – Professional exam while building DocuAI, a document-processing app (upload PDF/DOCX/TXT, get summaries, then search and chat with citations). Building it taught me three things the exam guide only hints at. 1. Make failures visible My em…

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  1. 2026-09-26 05:59 · DEV Community — AI
    3 Production GenAI Lessons From Building a RAG App on AWS

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