Linux System Administrator

Tel.: +351 214 171 161 - Lisboa

Tel.: +351 253 120 734 - Braga

Fax: +351 214 177 610

(Chamada para a rede fixa nacional) (Call to the national fixed network)

About Us:

DataSmart is a Portuguese company, positioning itself as a consulting company of excellence, with over 20 years of existence. We are specialized in Technologies and Information Systems services, for the Portuguese and International markets. We pride ourselves on fostering a culture of involvement, experience, and excellence.

Join our team as a

Linux System Administrator

(Hybrid – Porto, Lisbon)!

What You’ll Do:

Install, configure, maintain, and troubleshoot Linux servers (physical and virtual).

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.

Qualifications:

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; Python is an advantage.

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).

Knowledge of Docker and Kubernetes is a plus.

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.

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.

Professional English proficiency (minimum B2).

Based in Portugal and available to work in a hybrid model

At

DataSmart , you will have the opportunity to integrate into a solid company and participate in projects of high recognition, nationally and internationally, with an appealing technological environment and career progression.

Excellence in the way to the future!

Connect with Us : Follow us on LinkedIn for updates on career opportunities, company news, and industry insights! For further details, visit us at www.datasmart.pt

#JoinOurTeam #DataSmart #ThinkDataBeSmart #Linux

Do you accept the challenge?

We are waiting for you!

#J-18808-Ljbffr