Full job description Senior Low Latency Kernel Engineer (C++/Linux)
Want to work where nanoseconds matter?
We’re partnering with a top-tier quantitative trading firm seeking a Low-Latency Kernel Engineer to push the limits of Linux, networking, and hardware performance.
This is a deeply technical role focused on kernel tuning, CPU and memory optimization, network stack performance, and ultra-low-latency C++ development. You’ll work directly with FPGA, infrastructure, and hardware teams to eliminate bottlenecks across the entire stack.
What you’ll be doing:
*Optimising Linux kernels and network stacks for deterministic low-latency performance
*Analysing CPU, cache, memory, NUMA, and scheduling behaviour
*Developing high-performance C++20 systems used in trading and market data environments
*Leveraging tools such as perf, eBPF, and ftrace to identify and remove bottlenecks
*Collaborating with FPGA engineers on hardware-accelerated solutions
What we’re looking for:
*6+ years of modern C++ (C++20+) experience
*Deep expertise in Linux internals, kernel tuning, networking, and systems programming
*Strong understanding of CPU architecture, cache hierarchies, memory management, and performance profiling
*Exceptional academics from a top university in Computer Science, Mathematics, Engineering, Physics, or a related quantitative field
*A genuine passion for low-level performance engineering
Nice to have:
*DPDK, XDP, AF_XDP, RDMA, OpenOnload, or other kernel-bypass technologies
*FPGA or hardware acceleration exposure
*Experience in HFT, trading systems, market data, telecoms, or other latency-sensitive environments
Join a team of elite engineers solving some of the hardest performance challenges in the industry, where every optimisation can directly impact production trading performance. Apply for more info.