Linux Administrator

Job description

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

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full Time Jobs

Published at

18-01-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English