Trexquant Investment Software Engineer Interview Questions

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

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CodingStart here. 16 questions · ~169 min

Find the longest consecutive integer sequence in O(n) time using a hash set.

Reverse Characters in a StringEasy

Practice

Reverse a string efficiently using a two-pointer approach and return the reversed result.

RecursionArraysStrings

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Behavioral & Leadership9 questions · ~95 min

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More topics8 questions · ~85 min

Design a low-latency, fault-tolerant pipeline for ingesting market ticks and making them queryable in near real time.

Real-Time Market Data SystemHard

Design a low-latency system for ingesting, enriching, and serving real-time stock market data at Trexquant Investment.

latencyFeature StoreModel Serving

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Low-Level C++ Memory ManagementMedium

Assesses low-level memory management skills and debugging ability in C++.

memory managementDebuggingc++

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Architecting a Trading ApplicationHard

Tests your ability to design reliable trading software with performance, correctness, and operational constraints.

Launch PlanningTrade-offsRisk Assessment

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Memory-Intensive Python LoopMedium

Tests optimization of memory usage and performance in Python workloads.

data processingpython

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Low-Latency Cache DesignHard

Tests your understanding of caching strategies and performance tradeoffs in latency-sensitive systems.

Cold StartFeature StoreModel Serving

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