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# It Senior System Network Engineer

- **Company:** Randstad
- **Location:** Barcelona, Spain (Remote available)
- **Salary:** €60,000 - €65,000
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Wireless LAN, Active Directory, Active Directory Federation Services, Systems Engineering, Microsoft Azure, Firmware, IBM Systems Network Architecture, IP Addressing, Network Monitoring, Routing, Network Segmentation, Security Assertion Markup Language (SAML), Virtual Local Area Networks, Virtual Machines, Virtualization Technology, Wireless Access Point, Network Routers, Firewalls (Computer Science), Information Technology, Nutanix, Cisco Switches
- **Published:** November 12, 2026
- **Apply:** https://www.randstad.es/candidatos/ofertas-empleo/oferta/it-senior-system-network-engineer-3022652/

## About the Role

Do you have experience in IT systems and networking? We¿re looking for you., 5+ years of experience in IT infrastructure / system & network engineering
Configure, administer and troubleshoot Cisco switches, routers and wireless access points
Experience in 3rd-level IT support and incident resolution
Experience working in complex, international IT environments
Strong Knowledge of networking technologies, including switching, routing and WLAN
Good knowledge of Microsoft 365,
Azure and Active Directory
Good knowledge of Nutanix, virtualization and virtual machine management
Experience with SAML, ADFS, Proxy and Firewall technologies
Good troubleshooting, analytical and
problem-solving skills

## Description

¿ Maintain, operate and extend the existing global IT infrastructure landscape.
¿ Configure, administer and troubleshoot Cisco switches, routers and wireless access points.
¿ Maintain LAN, WAN, WLAN and site-to-site connectivity.Manage VLANs, IP addressing, routing,
switching and network segmentation.
¿ Monitor network availability, performance and capacity. Perform firmware upgrades, configuration
backups and infrastructure lifecycle activities.
¿ Manage Active Directory services, including user, group, authentication and related infrastructure
components.
¿ Manage and maintain virtual machines and virtualization environments, including Nutanix.
¿ Operate IT services and applications and execute IT engineering and infrastructure tasks.
¿ Support core infrastructure services such as SAML, Proxy, ADFS and Firewalls.
¿ Maintain and further develop the global network environment, including switching, routing and
WLAN.
¿ Provide 3rd-level support and resolve complex problems, incidents and service requests.
¿ Implement business and IT requirements and translate them into sustainable technical solutions.
¿ Support and execute ISO 27001-related activities, including infrastructure security, compliance
and documentation requirements.
¿ Drive continuous improvement of IT processes, services, standards and infrastructure capabilities.
¿ Contribute to infrastructure projects, technical standards and the continuous development of the IT
infrastructure roadmap, Randstad's ambition is to be the world's most equitable and specialized talent company. We help talent and organizations unlock their true potential by seeking responsible opportunities that drive long-term economic sustainability, prioritizing the well-being of people and the planet.

we are sustainable employment

Our conviction that all talent, regardless of their background, has equal opportunities for success is evident in our processes, in which we promote workplace equity through diverse and inclusive teams.

commitment NetZero

We strengthen our environmental commitment to achieve carbon neutrality by 2050 through the Science Based Targets initiative (SBTi).

publicada el 11/11/2026 · 521 visitas y 3 inscritos

este anuncio se cerrará el 11/05/2027
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