L2/L3 Linux Operations Engineer

O projekcie:
Please note that this position requires a
hybrid working model, with attendance at the Warsaw Hub for 1–2 days per week.

Role overview

We are seeking an experienced L2/L3 Linux Operations Engineer to support and maintain enterprise Red Hat Enterprise Linux (RHEL) environments. The ideal candidate will have hands-on experience in Linux administration, troubleshooting production issues, automating operational tasks using Red Hat Ansible Automation Platform, and managing system lifecycle and patching through Red Hat Satellite. The role requires a strong operational mindset, excellent problem-solving skills, and a commitment to maintaining high system availability and compliance.

Wymagania:
Required Skills
- 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. Qualifications
- Bachelor's degree or Master degree in Computer Science, Information Technology, or a related field.- Experience supporting enterprise production environments.- Strong troubleshooting and analytical skills.- Automation-first mindset with a focus on operational excellence.- Excellent communication and documentation skills.Preferred Certifications
- RHCSA / RHCE- Red Hat Certified Specialist in Ansible Automation- Red Hat Certified Specialist in Deployment and Systems Management- ITIL Foundation- Key Competencies

Codzienne zadania:
- Key Responsibilities
- 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 such as patching, configuration management, user provisioning, and compliance checks.
- 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.