Job Description

Linux Architect- Low Latency Trading

A leading global Market Maker and High-Frequency Trading firm is looking to hire a Linux Architect to design, optimize, and evolve the low-latency systems underpinning their trading infrastructure. This is a strategic, hands-on role at the intersection of systems engineering, performance tuning, and large-scale infrastructure design, offering a unique opportunity to shape the core Linux platform that drives one of the world’s most competitive trading environments.

Responsibilities:

• Own the end-to-end architecture of low-latency Linux systems used in ultra-fast trading across multiple asset classes.
• Design and implement OS-level optimizations to minimize latency and maximize determinism across a globally distributed infrastructure.
• Lead technical evaluations of new hardware and kernel features
• Collaborate with trading, quant, network, and hardware engineering teams to align systems design with evolving trading strategies.
• Build tooling to support fine-grained performance observability, profiling, and benchmarking.
• Set technical direction and establish standards for Linux configuration management, kernel tuning, and system resilience.
• Conduct deep kernel-level debugging and post-mortem analysis for production incidents related to performance or reliability.
• Guide adoption of Infrastructure-as-Code and systems automation strategies across the Linux platform.

Required Experience:

• Extensive experience in Linux architecture, performance tuning, and kernel internals, ideally within low-latency, high-throughput environments.
• Proven track record designing or maintaining systems for high-frequency or algorithmic trading.
• Deep understanding of CPU architecture, interrupt handling, cache behaviour, NUMA-aware tuning, and high-resolution timers.
• Strong scripting and systems programming skills (e.g., Python, Bash, C/C++).
• Strong cross-functional communication skills and the ability to influence technical decisions across engineering and trading teams.

Apply now for a confidential discussion

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