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Durlston Partners Interview Questions

The questions to prepare for Durlston Partners interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 8 questions · ~64 min
Cycle Detection in GraphsHard

Tests ability to design and implement correct graph algorithms for complex structures.

cycle detectionDDurlston Partners
Lock-Free Throughput ImprovementHard

Assesses understanding of lock-free algorithms, correctness, and performance considerations.

DDurlston Partners
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2
System Design9 questions · ~72 min
Distributed Data ConsistencyHard

Tests understanding of consistency models, coordination, and failure handling.

system designdistributed systemsdata consistencyDDurlston Partners
Messaging Queue vs Shared MemoryMedium

Assesses architectural judgment for latency, throughput, and operational complexity.

Trade-offsDDurlston Partners
Low-Latency Order Management SystemHard

Assesses system design skills for latency, throughput, and correctness in trading order flows.

system designDDurlston Partners
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3
Security & Infrastructure8 questions · ~64 min
Optimize Python for Intensive TasksMedium

Assesses ability to improve performance in Python using appropriate optimization techniques.

pythonoptimizationDDurlston Partners
Managing Memory Leaks in Long-Running C++Medium

Tests strategies for detecting, preventing, and mitigating memory leaks in production systems.

memory managementc++DDurlston Partners
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4
More topics3 questions · ~24 min
Memory Limits in BacktestingHard

Evaluates strategies to manage resource constraints while maintaining correctness in backtests.

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