Linux Administrator

Our client, a leading strategic trading firm, is looking for an Infrastructure Operations Engineer to support their Infrastructure team.

The Infrastructure team is responsible for maintaining a resilient, high-availability Linux environment that supports large-scale compute workloads and mission-critical platforms. The team partners with researchers, developers, and systems engineers to deliver reliable day-to-day operations while continuously improving automation, observability, and deployment practices across a performance-sensitive estate.

This role sits at the intersection of operations and engineering, combining hands-on systems support with longer-term improvements to stability, scalability, and efficiency.

Key Responsibilities

• Maintain and enhance Linux-based compute and application platforms used for data-intensive workloads
• Build, configure, and commission new servers, owning the process from initial provisioning through production readiness
• Work alongside engineering teams to implement automation, monitoring, and operational tooling
• Diagnose complex system issues, respond to incidents, and perform in-depth root cause analysis
• Develop and maintain operational documentation, runbooks, and internal knowledge resources
• Participate in an on-call rotation and provide occasional out-of-hours support (largely remote)

Required Experience and Skills

• Proven experience administering enterprise Linux systems (e.g. Red Hat–based distributions)
• Hands-on involvement in end-to-end server deployment, from physical hardware through OS installation
• Familiarity with modern x86 server architectures and components (AMD and Intel)
• Solid grounding in core networking concepts, including protocols and network topologies
• Experience using configuration management or automation frameworks such as Ansible
• Working knowledge of scripting for systems tasks (Python, Bash, or similar)
• Strong troubleshooting ability, with a methodical and analytical approach to problem-solving
• Clear communicator who works well in collaborative, technical environments
• Exposure to shared storage technologies (NFS, SAN) is beneficial but not mandatory