•SYSTEM DESIGN

DE Shaw System Design Questions

1 distinct system design problem asked at DE Shaw from September 2025 to September 2026, merged from 1 candidate report. Each one links to a full solution.

Sources: PracHub, LeetCode discussions. Sorted by how often the problem was reported at DE Shaw.

Aggregate records from multiple data sources with a designated primary source

Design a component (implemented in Python) that aggregates records about the same entities from multiple data sources. Sources share some common fields and each has additional source-specific fields; one source is designated…

LLD1 report·last Mar 2026

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