Senior Network Engineer

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.

• 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.
  

• Masters 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.
  

Cisco Nexus NX-OS IOS/IOS-XE Cisco Catalyst Center Cisco Wireless NAC 802.1X RADIUS Cisco ISE Network Operations