Linux Systems Administrator

Introduction

At Gallagher, we help clients face risk with confidence because we believe that when businesses are protected, they’re free to grow, lead, and innovate. You’ll be backed by our digital ecosystem: a client-centric suite of consulting tools making it easier for you to meet your clients where they want to be met. Advanced data and analytics providing a comprehensive overview of the risk landscape is at your fingertips. Here, you’re not just improving clients' risk profiles, you’re building trust. You’ll find a culture grounded in teamwork, guided by integrity, and fueled by a shared commitment to do the right thing. We value curiosity, celebrate new ideas, and empower you to take ownership of your career while making a meaningful impact for the businesses we serve. If you’re ready to bring your unique perspective to a place where your work truly matters; think of Gallagher.

Overview

We are looking for a skilled Linux Systems Administrator to join our Application Services team. This role involves managing and supporting business-critical applications across multiple environments, ensuring system stability, security, and operational excellence. The position requires collaboration with development, QA, infrastructure, and security teams throughout the Software Development Life Cycle (SDLC).

How you'll make an impact

• Environment & Application Management: Manage application environments, perform installations, upgrades, and ensure high availability.
• Linux Systems Administration: Administer Linux servers, monitor system health, and implement security updates.
• Database Administration: Maintain and support relational databases, focusing on Microsoft SQL Server and MySQL.
• Production Support: Resolve incidents, conduct root cause analysis, and improve platform stability.
• Business Intelligence & Data Integration: Support BI and ETL platforms, monitor data integration processes.

About you

• Strong Linux administration experience (Red Hat, CentOS, Ubuntu).

• Proficiency in Microsoft SQL Server (essential) and MySQL (preferred).

• Experience with application deployment, BI platforms, and cloud-hosted environments (e.g., Azure).

• Scripting and automation skills (Shell, Bash, PowerShell).

• Degree in Computer Science or related field.

• Certifications such as RHCSA, RHCE, or Azure Administrator Associate.