Linux Systems Administrator

About the role

Gallagher is looking for a Linux Systems Administrator to join its Application Services team. The role manages and supports business-critical applications across multiple environments, keeping systems stable, secure and running well. It works closely with development, QA, infrastructure and security teams throughout the software development life cycle.

Key responsibilities

• Manage application environments, perform installations and upgrades, and ensure high availability
• Administer Linux servers, monitor system health and apply security updates
• Maintain and support relational databases, focusing on Microsoft SQL Server and MySQL
• Resolve production incidents, carry out root cause analysis and improve platform stability
• Support BI and ETL platforms and monitor data integration processes

Required profile

• Strong Linux administration experience (Red Hat, CentOS, Ubuntu)
• Degree in Computer Science or a related field
• Certifications such as RHCSA, RHCE or Azure Administrator Associate

Required skills

• Proficiency in Microsoft SQL Server (essential) and MySQL (preferred)
• Experience with application deployment, BI platforms and cloud-hosted environments such as Azure
• Scripting and automation with Shell, Bash and PowerShell