Selby Jennings
Experienced C++ Engineer - Linux Kernel & Ultra-Low Latency Trading
Get notified of more jobs like this · No spam, ever
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Job Title
A world-class quantitative trading firm is seeking exceptional C++ and Linux performance engineers to work on the infrastructure underpinning some of the fastest trading systems in the industry.
Role Overview
This is an environment where performance is measured in nanoseconds, not milliseconds. Every cache miss, scheduler decision, memory allocation, kernel interrupt, and network hop is scrutinised. You'll work at the intersection of C++, Linux internals, CPU architecture, and hardware, extracting deterministic performance from modern x86 systems.
What You'll Own
- Ultra-low-latency C++ trading and market data infrastructure
- Linux kernel, scheduler, and network stack optimisation
- CPU, cache, NUMA, and memory performance analysis
- Low-level profiling using perf, eBPF, ftrace, and hardware counters
- Kernel tuning, CPU isolation, IRQ affinity, and latency reduction
- Cross-stack optimisation alongside FPGA, hardware, and infrastructure specialists
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
What They're Looking For
- 3-12 years of modern C++ (C++17/20)
- Strong Linux systems programming expertise
- Deep understanding of Linux internals and performance engineering
- Experience debugging bottlenecks across kernel, CPU, memory, and hardware layers
- Knowledge of CPU architecture, networking, and low-latency systems
- Elite academic credentials: First-Class degree (or equivalent GPA) from a top university in Computer Science, Mathematics, Physics, Engineering, or a related STEM field
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Why Join?
This role is about understanding how machines actually behave under load and removing latency at every layer of the stack. You'll profile production systems, tune kernels, analyse CPU behaviour, and optimise performance where microseconds are already too slow.
Apply to learn more.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London