Senior Linux Administrator

About the role

In the role, the successful candidate will:

• Ownership for assigned incidents, requests and other ticket types associated with the Linux hosting environment
• Troubleshoot issues with ICT services in conjunction with Information Systems colleagues
• Ensure all systems & servers are functioning & communicating properly. Systems include:
• RHEL OS (version 8, upgrade to 10 planned)
• RH OpenShift running in Azure (ARO)
• Automation: Ansible Automation Platform, Automation Hub, Bash scripting
• Version Control: Git (Bitbucket), SVN
• Atlassian: Jira, Confluence
• CI\CD: Jenkins, SonarQube, Sona type
• Security: Rapid7, Aquasec, OSSEC
• Monitoring: Opsview, Prometheus
• Logging: EFK, LOKI, Splunk
• Cloud: Azure Platform
• Daily system administration duties
• Liaise with 3rd party vendors
• Ensure the Red Hat environment is patched and up to date with all security and feature patches
• Monitor environment performance
• Ensure Dev Ops policies, standards & procedures are developed, implemented and adhered to
• Ensure relevant documentation is regularly updated & maintained
• Conduct regular disaster recovery testing ensuring backup plans & documentation are up to date

Requirements

We are looking for somebody who has the following background and skills:

• A strong understanding of best practices in terms of policies, standards and controls appropriate to a large financial services organization
• Background working in financial institutions preferable
• Relevant accreditations required
• Must have 5 years’ experience in relevant role
• Possess an advanced understanding of Linux concepts and technologies
• Experienced at organizing, prioritising & multitasking
• Experience in working with 3rd party vendors

Experience with:

• RHEL OS (version 8, upgrade to 10 planned)
• RH OpenShift running in Azure (ARO)
• Ansible Automation Platform and Automation Hub
• Version Control: Git (Bitbucket), SVN
• Atlassian: Jira, Confluence
• CI\CD: Jenkins, SonarQube, Sonatype
• Security: Rapid7, Aquasec, OSSEC
• Monitoring: Opsview, Prometheus
• Logging: EFK, LOKI, Splunk

The candidate must demonstrate:

• A good aptitude for relevant technologies
• Proven experience Linux administration
• Exceptional critical thinking & problem-solving ability
• Knowledge of best practices regarding management, control & monitoring of the Linux Environment
• Ability to work independently under minimal supervision
• Knowledge of computing infrastructures
• Excellent troubleshooting skills
• Good interpersonal & communication skills to provide support in a professional manner
• Ability to work on own initiative & demonstrate proactive ownership of tasks and issues with a defined SLA
• Self-motivated with good judgement, organisational and time management skills
• An ability to follow established processes & procedures and define new ones when appropriate
• Good attention to detail
• Good team working capability
• Dedicated and flexible work attitude

Important

• Must have a valid Stamp 4, Irish or EU passport and be based in Ireland
• Sponsorship is not available