Senior Linux Administrator

We are seeking an experienced Senior Linux Administrator to join our Information Systems team. The successful candidate will play a key role in supporting and maintaining Linux hosting environments, ensuring system stability, security, and performance across on‑premise and cloud platforms.

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• Take ownership of assigned incidents, service requests, and operational tickets within the Linux hosting environment
  
• Troubleshoot and resolve ICT service issues in collaboration with Information Systems colleagues
  
• Perform day‑to‑day system administration and ensure systems are operating efficiently and securely
  
• Maintain, patch, and upgrade Red Hat Linux environments in line with security and compliance standards
  
• Monitor system performance, availability, and capacity
  
• Support and enhance DevOps policies, standards, and procedures
  
• Maintain accurate and up‑to‑date technical documentation
  
• Liaise with third‑party vendors and service providers
  
• Conduct regular disaster recovery testing and ensure backup and recovery documentation is current
  

Modern and diverse technology stack, including

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• Operating Systems: RHEL 8 (with upgrade to RHEL 10 planned)
  
• Automation & Scripting: Ansible Automation Platform, Automation Hub, Bash
  
• Version Control: Git (Bitbucket), SVN
  
• CI/CD: Jenkins, SonarQube, Sonatype
  

You will bring a strong technical background combined with a structured, proactive approach to system administration. xcfaprz

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• Minimum 7 years’ experience in a senior or equivalent Linux administration role
  
• Advanced understanding of Linux concepts, systems, and infrastructure
  
• Strong knowledge of policies, standards, and controls within a large enterprise or financial services environment
  
• Experience working with third‑party vendors
  
• Relevant technical certifications or accreditations
  
• Previous experience working within financial institutions or regulated environments
  
• Strong troubleshooting, analytical, and problem‑solving skills
  
• Ability to work independently with minimal supervision
  
• Excellent organisational, time‑management, and prioritisation skills
  
• Strong communication and interpersonal skillsAbility to work to defined SLAs and take ownership of issues
  
• High attention to detail and commitment to quality
  
• Team‑focused, flexible, and proactive work attitude
  

Candidates must have Stamp 4, EU or Irish passport and be in Ireland.

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