The purest data-modeling prompt Palantir asks, the whole interview lives in the entity-resolution edge cases. Twins, maiden names, shared insurance IDs... and one architectural decision about merging that candidates get fatally wrong.
Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.
The purest data-modeling prompt Palantir asks, the whole interview lives in the entity-resolution edge cases. Twins, maiden names, shared insurance IDs... and one architectural decision about merging that candidates get fatally wrong.
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