Senior Linux Administrator
Information Systems · Dublin, County Dublin, Ireland
Description
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
About you
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