Klook Software Engineer Interview Questions

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

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CodingStart here. 5 questions · ~42 min

Tests concurrency control and algorithmic correctness for inventory under extreme contention.

Perfect Square Pair CountingHard

Evaluates problem-solving skills and mathematical reasoning for coding challenges.

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Fix Memory Leaks Under LoadMedium

Tests profiling, root-cause analysis, and safe performance improvements under production-like load.

performance

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Sorting Trade-offs in Distributed SystemsMedium

Tests distributed systems understanding of performance, memory, and communication costs.

performancedistributed systems

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System Design5 questions · ~42 min

Tests designing resilient release strategies with minimal downtime and safe rollback.

Distributed Booking Without OverbookingHard

Tests distributed consistency, concurrency control, and correctness under high demand.

system designbooking systemdistributed systems

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High-Throughput Notification ServiceHard

Tests event-driven design, throughput planning, and reliability for large-scale messaging.

system designscalability

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Behavioral & Leadership7 questions · ~58 min

Recovering a Project in TroubleEasy

Tests ownership under pressure, technical problem-solving, and cross-functional collaboration when a project encounters a major obstacle.

challengeProblem Solvingstar

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