Senior Network Engineer

Be Consultancy Group Bv; Lisboa; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

Be Consultancy Group Bv in Lisbon seeks an experienced Senior Network Engineer to lead our network infrastructure project. The role combines hands-on Cisco Nexus/NX-OS, IOS/IOS-XE and Catalyst Center work with a focus on NAC and secure access.

You will supervise changes, ensure operational stability, and drive modernization within a hybrid work model. The ideal candidate has a Master's degree and 8+ years in IT, deep hands-on Cisco networking, and strong knowledge of 802.1X, RADIUS, ISE,

Qualifications

• Master's degree and 8+ years IT experience.
• Hands-on Cisco Nexus/NX-OS and IOS/IOS-XE experience.
• Experience with switch upgrades/replacements.
• Knowledge of Catalyst Center and Cisco Wireless.
• Experience NAC, 802.1X, RADIUS and ISE.
• Strong ops, change management, and documentation.

Responsibilities

• Monitor and troubleshoot the network across wired, wireless, access and core.
• Resolve NAC and authentication-related incidents.
• Lead replacement of legacy switches with Cisco Nexus/NX-OS.
• Support deployment of new Cisco wireless, NAC and Catalyst Center.
• Plan and execute changes with stability.
• Improve monitoring, observability, configuration management, and automation.
• Maintain runbooks and technical documentation.

Skills

Cisco Nexus/NX-OS

IOS/IOS-XE

Wireless networking

NAC/ISE

Network monitoring

Change management

Documentation

Education

Master's degree

Tools

Catalyst Center

ISE

Job description

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

Senior Network Engineer Lisboa, 11, pt