The unglamorous design question that exposes who has run LLMs in production. Batch APIs at 50% off, idempotency keys, poison records, spend kill-switches: the full checklist interviewers listen for.
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Run an LLM over 10 million records nightly, within budget. Design the batch pipeline.
The unglamorous design question that exposes who has run LLMs in production. Batch APIs at 50% off, idempotency keys, poison records, spend kill-switches: the full checklist interviewers listen for.
Updated Sep 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.
UP NEXT ON YOUR JOURNEY
Learners often go here nextIngest 40 enterprise sources (SharePoint, Confluence, Jira, drives) with incremental sync and deletion handlingNext in this trackDesign the full eval harness for an LLM product: offline goldens, LLM-judge, online A/B, CI gatesNext in this trackDesign RAG over 10M documents with per-user permissions: a user must never see data they can't access
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