C++ Runtime & Performance Engineer

Job Description

C++ Runtime & Performance Engineer | Quantitative Trading | New York / Chicago

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We are working with a top quantitative trading firm looking for an engineer with deep expertise in C++, Linux and systems performance.

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The team works on some of the lowest-level components of the firm's technology stack, focusing on extracting performance from modern hardware and improving the efficiency and predictability of latency-sensitive systems.

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What you’ll work on:

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• Build and optimize performance-critical C++ systems
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• Investigate CPU, memory and concurrency bottlenecks
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• Work on memory allocation, threading, synchronization and runtime behaviour
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• Profile applications from software down to the underlying hardware
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• Improve cache efficiency, data layout and execution performance
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• Develop low-level tooling and infrastructure used by other engineers
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What we’re looking for:

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• Deep C++ and Linux experience
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• Strong understanding of memory management, concurrency and CPU architecture
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• Experience profiling and optimizing complex systems
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• Knowledge of caches, NUMA, allocators, atomics and synchronization
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• Experience with compilers, runtimes, kernels, databases, browsers, networking or other performance-sensitive systems is highly relevant
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No previous trading experience is required. This is particularly relevant for engineers working on performance-sensitive infrastructure, runtimes, operating systems, compilers, browsers or large-scale C++ systems.