Senior Linux Administrator – Critical Environments (Madrid | On-site)

Description

Job Summary: We are seeking a Linux Systems Administrator with experience in critical corporate environments to manage, maintain, and provide support for infrastructures based on open-source technologies. Key Highlights: 1. Linux system administration and evolution in production 2. Incident management and resolution of complex problems 3. Support in critical and high-availability environments DESCRIPTION We are looking for a Linux Systems Administrator with experience in critical corporate environments to join a technical team focused on the management, maintenance, and advanced support of infrastructures based on open-source technologies. **Main Responsibilities** * Administration, maintenance, and evolution of Linux systems in production * Incident management and resolution of complex problems * System monitoring and performance optimization * Implementation of security policies and server hardening * Support in critical and high-availability environments **Location:** Madrid (Hipódromo area) **Work Mode:** 100% on-site **Working Hours:** * Monday to Thursday: 7:30 AM – 5:00 PM (including lunch break) * Friday: 7:30 AM – 1:00 PM / 2:00 PM * Intensive schedule (June 15 – September 15): 7:30 AM – 2:00 PM REQUIREMENTS * Experience with Linux systems: Red Hat (versions 6 to 9\), Oracle Linux, Rocky Linux * Virtual machine administration with VMware (installation and maintenance) * Monitoring with Zabbix * Server hardening (hardening) * Experience in isolated/disconnected environments * Experience in troubleshooting and incident management. **Desirable Qualifications** * Automation with Ansible or Rundeck * Experience developing and using Ansible playbooks * Knowledge of backup and restoration * Experience with other Linux distributions If you are interested in working in a technically demanding and stable environment focused on critical infrastructures, this opportunity may match your profile.