Linux Engineer - Tier 1 trading firm - Saragossa

Skills

Problem Solving Python Kubernetes Linux C++

Job Specifications

This is not a Sys Admin role. This role is for elite engineers with strong coding ability, that are embedded within the Linux ecosystem.
You'll build and fine-tune the Linux OS that underpins some of the world's fastest trading systems.
You'll focus on ultra-low latency, bare metal performance, and kernel-level problem solving, alongside writing and debugging C++, Python, or Golang code.
Your work will span a variety of advanced systems topics, including memory management, CPU scheduling, kernel tuning, and virtualisation using KVM.
You'll also help manage and optimise on-prem Kubernetes environments supporting critical trading infrastructure.
This team works closely with quants and custom hardware teams (including GPUs and a proprietary network stack) to extract every microsecond of performance.
They're looking for elite engineers who truly understand the Linux ecosystem and love tinkering - problems are often complex and open-ended, sometimes taking weeks or months to resolve.
As you'd expect from a fund of this calibre, you'll be well-compensated - they're keeping the budget open to attract the best engineers.
Expect a generous base salary + guaranteed bonus (roughly a 60/40 split), and to work alongside talent from elite trading firms and FAANG organisations.
Location: London - fully onsite
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About the Company

We are Saragossa. A high-growth technology recruitment firm, specialising in helping investment businesses extend their technology capability. Named after an unusual but highly effective chess move, we help people achieve their objectives, whether building a world-class team, delivering exceptional projects, or accelerating professional ambitions. You can find our privacy policy here - https://saragossa.co.uk/privacy-policy Know more