Linux system administrator (m/f/x)

Experis is currently recruiting on behalf of one of its clients based in Luxembourg: Linux System Administrator (m/f/x) Your responsibilities: Administer, monitor, and maintain Linux-based system infrastructures (Red Hat, CentOS, Ubuntu) Deploy, automate, and manage systems and services using automation and IaC tools (Ansible, Terraform, Bash) Manage virtualization and containerized environments (VMware, KVM, Docker, Kubernetes) Ensure system availability, performance, capacity, and reliability in production environments Manage incidents, service requests, and changes in line with ITIL processes Participate in infrastructure migrations, upgrades, and IT transformation projects Ensure system security, patching, backup integrity, and compliance standards Monitor systems using appropriate monitoring and logging tools (Zabbix, Prometheus, Grafana, ELK) Write, maintain, and improve technical documentation and operational procedures Collaborate with network, security, and DevOps teams to ensure service continuity Proactively recommend and implement continuous improvements to enhance system stability and performance Your profile: You have a Bachelor’s degree in Computer Science or a related field You have strong experience in Linux system administration (Red Hat, CentOS, Ubuntu or similar) You have hands-on experience with a utomation , xniyctf scripting , and configuration management tools You have good knowledge of virtualization , containers , and cloud environments You are familiar with monitoring, logging, and performance tuning tools You have a solid understanding of networking and system security principles You are autonomous, detail-oriented, and solution-driven You are motivated by technical challenges and continuous learning You are fluent in English and in French (mandatory)