L2/L3 Linux Operations Engineer

Job Description Please note that this position requires a hybrid working model, with attendance at the Warsaw Hub for 1–2 days per week :) 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. What we offer: Long Term B2B Contract Rate: 35 euro/h + VAT Hybrid ( 1-2 days Warszawa office) 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. Participate in 24×7 on-call support and planned maintenance activities. Key Requirements 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'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 with a focus on operational excellence. Excellent communication and documentation skills. Ability to work effectively in a 24×7 enterprise support environment.