Linux System Administrator

Join our team as a Linux System Administrator (Hybrid – Porto, Lisbon). You will install, configure, maintain, and troubleshoot Linux servers (physical and virtual) and administer Linux operating systems such as Ubuntu, Red Hat Enterprise Linux, CentOS, Rocky Linux, and Debian.

• Install, configure, maintain, and troubleshoot Linux servers (physical and virtual)
• Administer Linux operating systems (e.g., Ubuntu, Red Hat Enterprise Linux, CentOS, Rocky Linux, Debian)
• Monitor system performance, availability, and capacity to ensure optimal operation
• Manage user accounts, permissions, groups, and security policies
• Perform system upgrades, patch management, and operating system maintenance
• Configure and maintain networking services, including DNS, DHCP, SSH, NFS, and VPNs
• Automate system administration tasks using scripting languages such as Bash or Python
• Manage storage solutions, file systems, backups, and disaster recovery processes
• Configure and maintain web servers, application servers, and database servers where required
• Troubleshoot hardware, software, networking, and operating system issues
• Implement and maintain monitoring and logging solutions (e.g., Nagios, Zabbix, Prometheus, Grafana, ELK)
• Support virtualization and cloud environments (VMware, KVM, Hyper-V, AWS, Azure, or Google Cloud)
• Manage configuration management and infrastructure automation tools (e.g., Ansible, Puppet, Chef, Terraform)
• Ensure system security by implementing hardening, vulnerability remediation, and access controls
• Collaborate with DevOps, development, networking, and security teams to support infrastructure projects
• Create and maintain technical documentation, procedures, and system architecture diagrams
• Participate in incident response, root cause analysis, and on-call support when required

• 3+ years (Mid) or 5+ years (Senior) of Linux system administration experience
• Strong experience administering Linux distributions such as Red Hat Enterprise Linux (RHEL), Ubuntu, CentOS, Rocky Linux, or Debian
• Solid understanding of Linux system architecture, kernel, processes, services, and package management
• Experience with Bash scripting
• Strong knowledge of networking concepts, including TCP/IP, DNS, DHCP, routing, firewalls, and VPNs
• Experience with virtualization technologies such as VMware, KVM, or Hyper-V
• Familiarity with cloud platforms such as AWS, Microsoft Azure, or Google Cloud Platform
• Experience with configuration management and automation tools (Ansible, Puppet, Chef, Terraform)
• Experience with monitoring, logging, and alerting tools (Prometheus, Grafana, Zabbix, Nagios, ELK, Splunk)
• Familiarity with CI/CD pipelines and DevOps practices
• Understanding of security best practices, system hardening, identity management, and vulnerability management
• Experience with backup, recovery, and high-availability solutions
• Strong troubleshooting and problem-solving skills
• Excellent communication and documentation skills
• Ability to work independently and collaboratively within cross-functional teams
• Professional English proficiency (minimum B2)
• Based in Portugal and available to work in a hybrid model

• Python is an advantage
• Knowledge of Docker and Kubernetes is a plus
• Bachelor’s degree in Computer Science, Information Technology, or a related field (preferred)
• Linux certifications such as RHCSA, RHCE, LPIC, or CompTIA Linux+ are considered an advantage

• opportunity to integrate into a solid company
• participate in projects of high recognition, nationally and internationally
• appealing technological environment
• career progression

Resumo organizado por IA a partir do anúncio original. Confirma os detalhes no site da empresa.