Linux Engineer - build/tune some of the world''s fastest trading systemsThis range is provided by Saragossa. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

OverviewThis is not a Sys Admin role.

This role is for elite engineers with strong coding ability, that are embedded within the Linux ecosystem.

Responsibilities

Build and fine-tune the Linux OS that underpins some of the world’s fastest trading systems.

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 memory management, CPU scheduling, kernel tuning, and virtualization using KVM.

Help manage and optimise on-prem Kubernetes environments supporting critical trading infrastructure.

Collaborate with quants and custom hardware teams (including GPUs and a proprietary network stack) to extract every microsecond of performance.

Work on complex, open-ended problems that may take weeks or months to resolve.

Details

Location: London – fully onsite

Base pay range: up to £250k base + bonuses. The budget is open to attract the best engineers, and compensation includes a generous base salary + guaranteed bonus (roughly a 60/40 split).

Salary is based on skills and experience.

Seniority

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Capital Markets, Investment Management, and Securities and Commodity Exchanges

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