Systems Administrator Technician

Description

Position Summary: We are seeking a Systems Administrator Technician to join our team, with expertise in critical and high-availability environments, focusing on Linux operating systems and DevOps technologies. Key Highlights: 1. Experience in critical and high-availability environments 2. Proficiency in Linux operating systems (RHEL/Oracle Linux) and bash scripting 3. Knowledge of DevOps tools (Git, Jenkins, Kubernetes, Docker) At SERES, we are looking for a Systems Administrator Technician to join our team. We are part of the French corporate group Docaposte, an international pioneer and specialist in Electronic Invoicing and EDI solutions. ### **Job Description and Responsibilities:** A Systems Administrator accustomed to working in critical environments with high-availability requirements. Responsibilities and required knowledge relate to operating systems and associated technologies: * Installation, configuration, and maintenance of Linux operating systems (RHEL/Oracle Linux). * Bash scripting knowledge. DevOps knowledge (Git, Jenkins, Nexus, Kubernetes, Docker, etc.). * Installation, configuration, and maintenance of Apache and Nginx web servers. * Installation, configuration, and maintenance of Tomcat application servers. * Operating system security and hardening. * Installation, configuration, and maintenance of service monitoring solutions, including creation of checks (agents). * Backup management/administration using dedicated tools. * Installation, configuration, and maintenance of VMware. * Management of SAN and NAS storage systems. ### **Minimum Educational Requirements:** * Technical or Higher Engineering degree in Computer Systems, or Vocational Training (FP) in Systems Administration. ### **Minimum Requirements:** * At least 5 years of experience as a Linux Systems Administrator. Experience working in critical environments with high-availability requirements. * Availability to perform on-call duties. ### **Desired Requirements:** * Cloud knowledge (OCI, AWS, Azure, etc.), programming skills in Python and Groovy. * Advanced Unix/Linux, networking, and storage cabinet management knowledge (partitioning, etc.), experience maintaining database servers. * Server and Syslog administration. * High-availability environment management, process automation, and monitoring/scheduling tools. Certifications such as LPI, RHCE, or Linux+ are valued. * Ability to read technical documentation in English. ### **We Offer:** * Hybrid work model (3 days remote, 2 days onsite), starting after the training and adaptation period, which is initially 100% onsite. * Intensive working hours during July and August. * Job stability and challenging projects. * Continuous training. * Workplace: Madrid * Well-being area: physiotherapy and therapeutic exercise.