Senior Linux System Engineer - London

We are looking for a Senior System Engineer to join our client's London office. Team / Role: As a Senior System Engineer, you will: Provide technical support for the production environment, ensuring system stability and performance. Optimize infrastructure architecture in cloud environments to achieve best-in-class network performance. Debug kernel-level performance issues and resolve production incidents in real time. Tackle complex network and Linux-related challenges. Participate in infrastructure architecture design, including office expansion projects. Required Skillset: Bachelors degree in Computer Science, Software Engineering, or a related technical discipline (or equivalent experience). 10+ years of experience supporting Linux production environments and working in cloud infrastructure . Strong knowledge of modern Linux systems and systems programming concepts (e.g., sockets, virtual memory, process lifecycle). Extensive hands-on experience with Terraform, Bash, and Python. Proven ability to estimate project work and deliver results on schedule. Skilled in writing clear, concise, and comprehensive documentation. Previous experience leading a small team is preferred. Preferred Background: Prior experience at a trading firm or with trading technology environments.