Linux Infrastructure Engineer Fintech / Trading

Overview

In this role you will own and maintain the Linux-based trading infrastructure, focusing on reliability and performance for global markets. You will work with cross-functional teams to mitigate risks, manage incidents, and drive automation and resilience. The position sits in a fast-paced fintech environment delivering market-leading trading and execution capabilities. You will be part of a progressive company that values proactive problem-solving, continuous improvement, and operational excellence.

Pay / Benefits

• excellent salary
• benefits package
• ongoing training
• structured career path
• London-based, 4 days in office
• travel opportunities

Responsibilities

• Own, maintain and support trading system components
• Identify and mitigate risks to service delivery; resolve issues proactively
• Lead incident and problem management with root-cause analysis
• Coordinate parties during client-facing outages and escalate complex issues
• Conduct resiliency testing and ensure application redundancy and failover
• Real-time system monitoring across diverse tools
• Capacity planning and assessment
• Application maintenance including change, release management, patches
• Define and lead projects to improve ops efficiency and automation
• Maintain runbooks and key operational documentation

Key requirements

• 5+ years as a System Administrator (Redhat & Ubuntu)
• Solid understanding of volume management and RAID
• Storage experience (Pure/NetApp/EMC) is a plus
• Knowledge of cloud services (Google and/or AWS)
• Experience with multi-vendor cloud management tools is a plus
• Scripting/Programming skills in any language
• Experience with host management frameworks (Ansible or Puppet) is a plus
• Experience with vulnerability scanning reports and patch deployment
• Experience with PAM (Privileged Access Management) tools
• Knowledge of Git

• Coordination and stakeholder management during outages
• Strong incident management and problem-solving mindset
• Documentation and runbook maintenance
• Redhat and Ubuntu system administration
• Storage systems (Pure, NetApp, EMC)
• Cloud platforms: Google Cloud, AWS

…