Full-stack Engineer

• Responsible for administering, configuring, optimizing and supporting the entire IT infrastructure, with a focus on Linux systems and virtualization environments.
• Ensure high availability, performance, security and continuity of network environments, physical and virtual servers, operating systems, backups and directory services in on-premises and cloud/hybrid environments.
• Install, configure, maintain and troubleshoot Linux servers (Ubuntu, CentOS, RedHat/RHEL, SUSE/SLES) and Windows Server.
• Manage the boot process (GRUB2), initialization (systemd) and runlevels/targets. Perform controlled shutdowns and reboots.
• Manage software packages using apt/dpkg, yum/rpm and zypper, configure repositories and ensure system integrity and updates.
• Manage and maintain server virtualization environments with VMware, XenServer and Proxmox, including operating VMs as Linux guests.
• Design disk layouts, create and manage partitions, filesystems (ext4, XFS, Btrfs) and Logical Volumes (LVM), including snapshots and space management.
• Administer essential services such as Active Directory, DNS, DHCP, NTP, FTP, LDAP, and file services (NFS, Samba), ensuring their integration and operation.
• Configure and manage network interfaces, firewalls (iptables, firewalld) and security policies such as SELinux. Troubleshoot connectivity and DNS issues.
• Develop and maintain scripts in Shell (Bash), Python and/or PowerShell for automation of administrative tasks, provisioning and maintenance routines.
• Manage user and group accounts, password policies and file/directory access permissions, including ACLs and privilege delegation with sudo.
• Monitor infrastructure health and performance, analyze system logs (syslog, journald) and optimize processes to ensure service stability and performance.
• Implement and manage backup routines and disaster recovery plans to ensure data integrity and availability.
• Securely access and manage servers using SSH, VNC and RDP.
• Control and execute the lifecycle of events, incidents, requests, problems and changes within industrialized and automated processes.
• Work on the restoration of industrialized and automated assets, applications, systems and services.
• Provide immediate response to incidents and attacks.
• Participate in integration, requirements analysis, configuration and customization of the technology bus for cognitive exploration, artificial intelligence and Omnichannel channel integration.

Systems and Virtualization Analyst — Mid (N3) Linux

Fullstack Developer