C++ Engineer - Pushing the Speed of Light | Ultra-Low Latency Trading Systems

Job Description

We are partnering with one of the world’s most technically ambitious proprietary trading firms - a group rebuilding their entire trading platform from the metal up to operate at the physical limits of modern hardware. This isn’t an incremental improvement. It’s a total re-architecture of the fastest system on the planet, where every microsecond is contested ground and every cache miss is a bug.

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Environment: C++20/23 • Linux • Kernel-bypass Networking • FPGA • RDMA • Nanosecond Execution

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Their engineers operate where nanoseconds decide P&L - measured, profiled, and deployed in live markets where performance is the edge.

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They’re now seeking an elite C++ Engineer capable of designing and optimising the core of a real-time execution platform - a system that ingests millions of market events per second and reacts deterministically, faster than anyone else on Earth.

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The successful engineer will:

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• Architect zero-GC, lock-free pipelines built around ring buffers and cache-aligned data structures.
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• Develop custom kernel-bypass network stacks using DPDK, RDMA, and Solarflare Onload , tuned to single-digit microsecond latency.
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• Engineer branch-prediction-aware order handlers and SIMD-vectorized pricing logic in AVX-512 .
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• Deliver next-tick telemetry with nanosecond-precision timestamps and cross-core synchronization.
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• Collaborate with FPGA specialists to merge hardware precision with software agility.
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The Toolkit

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• Modern C++20/23 , template metaprogramming, constexpr, inline assembly when necessary.
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• Profiling and optimization using perf , VTune , bcc , and FlameGraphs .
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• Deep knowledge of NUMA-aware design , memory fences, and lock-free concurrency.
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• Expertise in custom allocator design , branchless algorithms , and profile-guided optimization .
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• A habit of benchmarking rather than assuming - data, not theory.
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Ideal Background

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• Proven experience building ultra-low-latency systems in trading, gaming, or networking.
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• Deep understanding of CPU architecture , from cache hierarchies to speculative execution.
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• The mindset of someone who thinks in nanoseconds and measures in CPU cycles .
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• A record of winning battles with compilers, kernels, and performance bottlenecks.
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The Environment

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This firm operates on a flat structure - no committees, no bureaucracy, no excuses. Engineering, hardware, and trading sit shoulder-to-shoulder. Code that’s 10ns faster doesn’t just run better - it changes the business.

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If you believe latency is the final frontier, and profiling is the only truth, this is the environment you’ve been building toward.

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To apply, please either send View email address on ziprecruiter.com an email, or respond to this advertisement.