Network Operations Analyst

NextLink Group; Brussel Hoofdstad; On-site; EUR 45,000 - 70,000; Full time

Job summary

NextLink Solutions is seeking a Network Operations Analyst to join our technical operations team, supporting a prestigious defence client in Brussels. You will ensure reliable enterprise network services, monitor performance, and implement security controls across campus and data centre environments.

The role emphasizes hands-on Cisco technologies, SD-Access, ACI, ISE, and collaboration with internal stakeholders and service providers to maintain availability and reliability.

Qualifications

• Hands-on experience with Cisco networking technologies (SD-Access, ACI, Cisco ISE) and network monitoring solutions.

Responsibilities

• Provide first and second-line operational support for enterprise network services and infrastructure.
• Monitor, maintain, troubleshoot and optimise campus and data centre network environments.
• Support network infrastructure deployment, hardware replacement and technology refresh projects.
• Implement network configurations, upgrades and security controls in accordance with established standards.
• Support Cisco SD-Access, ACI, wireless networking and multi-tenancy environments.
• Administer and support DNS, DHCP and IP Address Management (IPAM) services.
• Maintain network monitoring systems and proactively identify and resolve performance or availability issues.
• Support network security technologies, including firewalls, Cisco ISE and PKI.

Skills

Cisco networking

Network monitoring

Security practices

DNS/DHCP/IPAM

SD-Access

ACI

Cisco ISE

IPAM

Firewalls

Tools

Cisco equipment

Monitoring tools

Job description

Brussels, Belgium | Posted on 11/13/2026

• City Brussels
• Job Posting ID ZR_4542_JOB

What is the mission about?

To ensure reliable and efficient network operations for business continuity.

Job Description

Network Operations Analyst

Job Overview

NextLink Solutions is seeking an experienced Network Operations Analyst to join the technical operations team of a prestigious defence client and support the delivery, maintenance and continuous improvement of enterprise network infrastructure.

You will provide first and second-line operational support across complex network environments, ensuring the availability, security, performance and reliability of critical network services.

This role will involve monitoring and troubleshooting network infrastructure, supporting technology refresh and deployment projects, implementing network configurations and security enhancements, and collaborating with internal stakeholders and external service providers.

The ideal candidate will have strong hands-on experience with Cisco networking technologies, including SD-Access, ACI, Cisco ISE and network monitoring solutions, alongside a solid understanding of enterprise data centre and campus network environments.

Key Responsibilities

Provide first and second-line operational support for enterprise network services and infrastructure.

Monitor, maintain, troubleshoot and optimise campus and data centre network environments.

Support network infrastructure deployment, hardware replacement and technology refresh projects.

Implement network configurations, upgrades and security controls in accordance with established technical standards and operational procedures.

Support Cisco SD-Access, Application Centric Infrastructure (ACI), wireless networking and multi-tenancy environments.

Administer and support DNS, DHCP and IP Address Management (IPAM) services.

Maintain network monitoring systems and proactively identify and resolve performance or availability issues.

Support network security technologies, including firewalls, Cisco ISE and Public Key Infrastructure (PKI).