Hybrid Infrastructure Systems Administrator – Lisbon

Claranet Portugal; Lisboa; Hybrid; EUR 45,000 - 65,000; Full time

Job summary

Claranet Portugal in Lisbon, Portugal, is seeking an Infrastructure Systems Administrator to join our Talent Team on a hybrid work model (1 day onsite). You will administer, monitor, and maintain enterprise infrastructure, virtualization platforms, and network security to support critical services.

The ideal candidate has hands-on experience with VMware or Hyper-V, Windows and/or Linux servers, and strong networking knowledge (TCP/IP, DNS, DHCP, VLANs, VPNs).

Qualifications

• Hands-on experience with virtualization technologies (VMware, Hyper-V, or similar).
• Experience managing firewalls and network security solutions.
• Strong knowledge of server administration in datacenter environments.
• Experience with Windows Server and/or Linux.
• Knowledge of TCP/IP, DNS, DHCP, VLANs, and VPNs.
• Experience with backup and disaster recovery solutions.
• Strong troubleshooting and problem-solving skills.
• Ability to work effectively in enterprise environments.

Responsibilities

• Administer, maintain, and support enterprise infrastructure environments.
• Manage and maintain virtualization platforms and related services.
• Configure, monitor, and troubleshoot firewalls and network infrastructure.
• Administer Windows and/or Linux servers in datacenter environments.
• Monitor system performance, availability, and capacity.
• Support infrastructure upgrades, migrations, and improvement projects.
• Ensure compliance with security and operational best practices.
• Collaborate with technical teams to support business-critical services.

Skills

VMware

Hyper-V

Firewall management

Windows Admin

Linux Admin

Networking basics

Backup & DR

Troubleshooting

Enterprise env

Job description

Claranet Portugal in Lisbon, Portugal, is seeking an Infrastructure Systems Administrator to join our Talent Team on a hybrid work model (1 day onsite). You will administer, monitor, and maintain enterprise infrastructure, virtualization platforms, and network security to support critical services.

The ideal candidate has hands-on experience with VMware or Hyper-V, Windows and/or Linux servers, and strong networking knowledge (TCP/IP, DNS, DHCP, VLANs, VPNs).