### **Position Objective:** Ensure the availability, security, and performance of the technological infrastructure by providing specialized support in operating systems, networks, and critical services, as well as collaborating on continuous improvement and automation projects. ### **Main Responsibilities:** * Administer and maintain **Linux (CentOS, Ubuntu, RedHat)** and **Windows Server** operating systems. * Manage users, permissions, and security policies in corporate environments. * Monitor, back up, and ensure recovery of critical systems. * Apply patches, updates, and perform **hardening** on servers. * Automate administrative tasks using **scripts** (Bash, PowerShell). * Administer services such as **Active Directory, DNS, DHCP, email, and shared resources**. * Collaborate with other technical teams on infrastructure and support projects. * Document operational procedures and policies. ### **Technical Requirements (mandatory):** * Experience with **Linux** and **Windows Server** operating systems. * Knowledge of **security**: backups, access control. * Basic networking: **TCP/IP, VPNs, firewalls**. * Scripting: **Bash and PowerShell**. ### **Desirable Requirements:** * Server hardening. * Virtualization: **VMware, Hyper\-V**. * Cloud: **Azure, AWS, or Oracle Cloud**. * Additional scripting: **Python**. * Monitoring tools: **Zabbix, Nagios, Prometheus, or similar**.