Senior Network Engineer

All European Careers; Lisboa; Híbrido; EUR 55 000 - 75 000; Tempo integral

Resumo da oferta

All European Careers in Lisbon seeks an experienced Senior Network Engineer to lead a major network transformation. You will combine day-to-day operations with design and rollout of Cisco Nexus/NX-OS, IOS/IOS-XE, Catalyst Center, and NAC. Hybrid role with three days onsite in Lisbon.

The role requires 8+ years in IT, strong hands-on Cisco expertise, and a disciplined approach to change management, monitoring, and documentation.

Qualificações

• Master's degree and 8+ years IT experience.
• Hands-on Cisco Nexus/NX-OS and IOS/IOS-XE expertise.
• Experience with NAC, 802.1X, RADIUS and ISE.
• Experience implementing Cisco Catalyst Center and wireless networks.
• Strong background in network operations and change management.

Responsabilidades

• Monitor and maintain the network environment and troubleshoot issues across wired, wireless, access and core networks.
• Investigate and resolve network incidents, including NAC and authentication-related issues.
• Lead the replacement of legacy Cisco switches with Cisco Nexus/NX-OS.
• Support the implementation of a new Cisco wireless environment, NAC and Catalyst Center.
• Plan and execute network changes, upgrades and ad hoc fixes while maintaining operational stability.
• Improve network monitoring, observability, configuration management and automation.
• Maintain technical documentation and operational runbook.

Conhecimentos

Cisco Nexus NX-OS

IOS/IOS-XE

Catalyst Center

Cisco Wireless

NAC 802.1X

ISE

Network operations

Change management

Monitoring & observability

Formação académica

Master's degree

Descrição da oferta de emprego

For an international organization in Lisbon, Portugal, we are looking for an experienced Senior Network Engineer with strong hands-on experience in Cisco Nexus/NX-OS, IOS/IOS-XE, Catalyst Center, Cisco Wireless and Network Access Control (NAC).

You will combine day-to-day network operations with a major network infrastructure transformation, acting as the senior technical lead and ensuring changes are implemented safely while maintaining operational stability.

This is a hybrid position requiring 3 days per week onsite in Lisbon.

Tasks and Responsibilities

• Monitor and maintain the network environment and troubleshoot issues across wired, wireless, access and core networks;
• Investigate and resolve network incidents, including NAC and authentication-related issues;
• Lead the replacement of legacy Cisco switches with Cisco Nexus/NX-OS;
• Support the implementation of a new Cisco wireless environment, NAC and Catalyst Center;
• Plan and execute network changes, upgrades and ad hoc fixes while maintaining operational stability;
• Improve network monitoring, observability, configuration management and automation;
• Maintain technical documentation and operational runbook.

Profile

• Master's degree and 8+ years of IT experience;
• Strong hands‑on experience with Cisco Nexus/NX-OS and IOS/IOS-XE;
• Experience with network switch upgrades and replacements;
• Knowledge of Cisco Catalyst Center;
• Experience implementing Cisco wireless networks;
• Experience with Network Access Control (NAC), 802.1X, RADIUS and ISE;
• Strong experience with network operations and change management;
• Comfortable working with network monitoring and observability.

Key Technologies & Skills