**Company Overview** team.blue is an ecosystem of 60\+ successful brands working together across 22 European countries to provide its 3\.5 million SMB customers with everything they need to succeed online by offering best\-in\-class expertise and services. team.blue's brands are a mix of traditional hosting businesses that offer services from domain names, email, shared hosting, e\-commerce, and server hosting solutions and, as specialist SaaS providers, adjacent products such as compliance, marketing tools, and team collaboration products. This broad product offering makes it a one\-stop partner for online businesses and entrepreneurs across Europe. **Position Overview** We are looking for a **Linux System Administrator** to join our operations team in oneof our brands in Portugal (**Dominios.pt**) Your mission will be to ensure that our infrastructure and services are fast, secure, and reliable, both at the software and hardware level. **Key Responsibilities:** * Administration and maintenance of Unix/Linux systems in a production environment * Management and monitoring of critical services (web, email, databases) * Troubleshooting and solving hardware and software issues * Supporting datacenter operations (installation, replacement, and configuration of equipment) * Collaborating with the team to continuously improve infrastructure security, performance, and reliability **Requirements:** * Proven experience with Unix/Linux operating systems * Knowledge of DBMS (MySQL) * Experience with LAMP/LEMP stacks (including HTTP protocol) * Understanding of email protocols and related services * Basic hardware knowledge (servers, networking, storage) in a datacenter environment * Basic knowledge of DNS fundamentals * Understanding of TCP/IP fundamentals and basic networking concepts **Nice to have:** * Degree in Computer Science or related field * Experience with shared hosting panels (cPanel, Plesk) * Knowledge of backup systems (R1Soft, Acronis, Veeam, Proxmox Backup Server, JetBackup) * Experience with configuration management tools (Puppet, Ansible) * Virtualization and containerization (KVM, LXC, Docker) * Experience with monitoring and observability tools (Zabbix, Prometheus, Grafana) * Scripting skills (Bash, Python or similar) **Our tech stack:** * RedHat and Debian based systems * LEMP, LAMP * cPanel, Plesk * R1Soft, Acronis, Proxmox Backup Server, JetBackup * Puppet, Ansible * Git * Proxmox VE, OnApp * Prometheus, Grafana, Zabbix **"Come as you are"** Everyone is welcome here. Diversity \& Inclusion are at the core of our culture. More than technical skills, we value respect, openness, and trusted collaboration. We do not tolerate intolerance. \#LI\-CC1