Zocdoc Software Engineer Interview Questions

The questions to prepare for a Zocdoc Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

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CodingStart here. 23 questions · ~200 min

Simulate FIFO queue operations using two LIFO stacks with amortized O(1) processing.

Array Duplicate FinderEasy

Practice

Return the values that appear more than once in an array using a hash set in linear time.

Hash TablesArrays

Zocdoc

Actor Collaboration Hash TableMedium

Tests graph modeling, hash-based lookups, and efficient mutual-connection detection.

Hash TablesGraphs

Zocdoc

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Execution4 questions · ~35 min

Tests distributed indexing, retrieval, and consistency strategies for provider search.

Real-Time Booking Engine DesignHard

Tests concurrency control, correctness under load, and real-time system design tradeoffs.

Rollback Planthroughputbottlenecks

Zocdoc

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System Design16 questions · ~139 min

Turn Zocdoc Into RedditHard

Evaluates your system design approach for a major product transformation at Zocdoc.

Zocdoc

Cache System for Stock PricesHard

Evaluates your caching strategy, TTL handling, and correctness under time-based constraints.

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Behavioral & Leadership6 questions · ~52 min

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