L2/L3 Linux Operations Engineer

This role supports and maintains enterprise Red Hat Enterprise Linux (RHEL) environments within a pharmaceutical industry setting. The position involves working in a hybrid model based in Warsaw, providing operational support and automation in an enterprise production environment.

• Strong hands-on experience with Red Hat Enterprise Linux (RHEL 7/8/9).
• Experience administering Red Hat Satellite for patching, provisioning, and lifecycle management.
• Hands-on experience with Red Hat Ansible Automation Platform, including Playbooks, Roles, Inventories, Templates, Workflows, and Ansible Vault.
• Solid knowledge of Linux administration, including LVM, XFS/ext4, systemd, SELinux, firewalld, SSH, DNS, NFS, and package management (YUM/DNF).
• Experience with monitoring tools such as SCOM and Netmon.
• Familiarity with VMware/KVM virtualization and basic cloud concepts (AWS/Azure) is desirable.
• Experience with ITSM tools such as ServiceNow and a good understanding of ITIL processes.
• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
• Experience supporting enterprise production environments.

Preferred Certifications:

• RHCSA / RHCE
• Red Hat Certified Specialist in Ansible Automation
• Red Hat Certified Specialist in Deployment and Systems Management
• ITIL Foundation

Key Competencies:

• Strong troubleshooting and analytical skills.
• Automation-first mindset focused on operational excellence.
• Excellent communication and documentation skills.
• Ability to work effectively in a 24×7 enterprise support environment.

• Provide L2 operational support for RHEL 7/8/9 servers across Production, UAT, DR, and Development environments.
• Troubleshoot OS, application, performance, storage, and network-related issues while meeting SLA commitments.
• Perform user, filesystem, LVM, service, package, and security administration.
• Execute OS patching, vulnerability remediation, and lifecycle management using Red Hat Satellite.
• Manage Satellite components, including Content Views, Lifecycle Environments, Activation Keys, Host Collections, Repository Synchronization, Remote Execution, and Subscription Management.
• Develop and maintain Ansible Playbooks, Roles, Templates, and Job Templates to automate routine operational tasks.
• Troubleshoot and optimize Ansible automation workflows and maintain automation code in Git.
• Monitor system health, investigate alerts, perform root cause analysis, and implement preventive measures.
• Create and maintain technical documentation, SOPs, and knowledge base articles.
• Collaborate with L3 engineers, application teams, and infrastructure teams during incident, change, and problem management activities.
• Participate in 24×7 on-call support and planned maintenance activities.

Position requires hybrid working model with attendance at the Warsaw Hub for 1–2 days per week.