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hardNewParallelSalesforceGlean

You refresh 50,000 CRM company records nightly with a web-grounded decision API. Design it so a wrong answer never overwrites a right one.

One call per company, a pinned domain, an unknown option on every question, and a write policy that checks whose website the evidence came from. Without that check, a same-name company's GitHub page updates your customer record.

Updated Nov 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

One call per company, a pinned domain, an unknown option on every question, and a write policy that checks whose website the evidence came from. Without that check, a same-name company's GitHub page updates your customer record.

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FEDITOR'S NOTE

An original design exercise using Parallel's Decisions API as the concrete example, not a reported company interview. Score whether the candidate treats the probability as conditional on retrieved evidence, handles unknown and refusal as distinct outcomes, verifies entity identity against call-level citations, and separates confirming a value from changing it.

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