**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 one of our brands in Portugal (**PTisp).** Your mission will be to ensure that our infrastructure and services are fast, secure, and reliable. **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 issues * 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 knowledge of DNS fundamentals **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) * NoSQL systems (Redis, MongoDB) * Open\-source published projects/contributions. **Our tech stack:** * + Redhat and Debian based; + LEMP, LAMP; + cPanel, Plesk; + R1Soft, Veeam, Acronis; + Puppet, Ansible; + Git; + KVM. **ESG** At team.blue, our commitment to caring for the environment and each other is at the heart of everything we do. Our latest impact report showcases our ongoing ESG efforts and ambitious sustainability goals. Interested in learning more about our dedication to making a positive impact? Check it out **here**. **"Come as you are"** Everyone is welcome here. Diversity \& Inclusion are at our core. Far above any technical competence, we value respect, openness, and trusted collaboration. We do not tolerate intolerance. \#LI\-CC1