Ready to take the next step in your career? Join a global trading firm powered by advanced research and high-performance technology, providing essential market liquidity. With teams across the US, Europe, and Asia Pacific, the firm brings together researchers, engineers, and traders in a collaborative, innovation-driven environment. An exciting opportunity has opened for a Senior Linux Engineer to join a high-performance engineering team operating at scale. The role focuses on building, maintaining, and improving a large Linux environment supporting latency-sensitive trading and research systems, with responsibility across provisioning, monitoring, optimisation, and automation. If you would like to learn more about this opportunity, feel free to reach out and apply today! Responsibilities: • Manage and optimise large-scale Linux infrastructure across global environments • Troubleshoot complex performance and system-level issues in production • Build and improve automation tooling (Python/Bash) • Enhance provisioning and configuration management processes • Improve monitoring, observability, and overall system reliability Required Skills/Qualifications: • Strong Linux systems engineering experience at scale (ideally bare-metal) • Proven background in low-latency trading environments (current or previous) • Solid scripting/automation skills (Python preferred) • Experience with configuration management tools (e.g. Puppet, Ansible) • Strong troubleshooting across systems and networking (TCP/IP, DNS, etc.) • Familiarity with CI/CD, Git, and containerisation (Docker/Kubernetes is a plus) Location: • Chicago (On-site) Benefits: • Annual bonus • Leading benefits package Salary: • Up to $225,000 basic salary per annum