Linux System Administrator - Lisboa

Linux System Administrator
Lisboa
Lisboa, Lisboa, Portugal

Prime
IT is a leading company with over 18 years of experience in delivering technology services across IT, Telecommunications, and Engineering.

Specialized in Team Extension, Managed Services, Custom Software, and Nearshore solutions, we currently have a team of more than 2, 350 professionals working on national and international projects.

We are looking for a Linux L3 System Administrator for this international project!

What we’re looking for:

Proven experience as a Linux System Administrator (Level 3)
Experience working in Agile environments
Solid understanding of cloud infrastructure, including web servers, batch operations, and proxy configurations
Familiarity with web and application servers: PHP, Tomcat, JBoss, or Java
General database knowledge (e. g. My
SQL, Postgre
SQL)
Experience using remote storage systems (NAS, NFS), including encryption of NFS traffic
Understanding of authentication & directory services, especially working with Active Directory and SSSD
Experience with Linux firewalls, DNS in production environments, and
- level configurations
Proficiency in tools such as Service
Now, Puppet, Git
Hub, Jira
Familiarity with virtualization technologies, VM and storage management
Solid grasp of technical concepts like the difference between removing vs deleting files in Linux

Daily responsibilities:

Provide Level 3 operational support for Linux-based systems
Collaborate in Agile teams to manage infrastructure and support applications
Participate in Dev
Ops-related tasks and
- functional initiatives
Support and maintain Linux servers, ensuring performance and security
Contribute to patching, upgrades, and proactive maintenance routines
Document processes and support knowledge transfer to other teams
Troubleshoot production issues related to performance, connectivity, and system behavior