Linux System Administrator || Toronto ON || Fulltime FTE

Job Title: Linux System Administrator
Job Location: Toronto, ON
Work Mode: Onsite
Employment Type: Full-Time FTE Permanent

Job Description

We are looking for an experienced Linux System Administrator with strong expertise in Linux infrastructure administration, Ansible automation, and working knowledge of IBM WebSphere Application Server (WAS).

Key Responsibilities

• Administer, configure, maintain, and troubleshoot Linux servers in production environments.

• Perform server provisioning, patching, upgrades, capacity management, and performance tuning.

• Manage users, permissions, file systems, storage, services, networking, and system security.

• Develop and maintain Ansible playbooks, roles, and scripts to automate administration, configuration, patching, and deployment activities.

• Identify opportunities to reduce manual effort and improve operational efficiency through automation.

• Perform incident troubleshooting, root cause analysis, and resolution of Linux infrastructure issues.

• Support IBM WebSphere Application Server (WAS) administration, including deployments, service management, configuration, log analysis, and troubleshooting.

• Support production changes, maintenance activities, vulnerability remediation, and operational health checks.

• Maintain technical documentation, SOPs, and operational procedures.

Required Skills & Qualifications

• Must-have experience with Puppet, Foreman, and Qualys.

• Strong hands-on experience with Linux administration, preferably RHEL.

• Good hands-on experience with Ansible and infrastructure automation.

• Strong knowledge of shell scripting, system troubleshooting, patching, networking, storage, and performance monitoring.

• Working knowledge of IBM WebSphere Application Server (WAS).

• Experience supporting 24x7 production environments and handling incidents/changes.

• Strong troubleshooting, documentation, and communication skills.