Network Administrator

Squaredev BV; Brussel Hoofdstad; On-site; EUR 42,000 - 62,000; Full time

Job summary

SquareDev in Brussels is seeking a Network Administrator for one of our EU public sector clients. You will ensure operation of telecom and computer infrastructure to meet organisational needs, while maintaining security and performance.

The role requires hands-on experience with Palo Alto, F5, Cisco, and VPN technologies, plus strong troubleshooting and analytical skills to support network availability across the client environment.

Qualifications

• Bachelor's degree in Computer Science, Engineering or a related technical field (required).
• Hands-on experience with Palo Alto, F5 and Cisco networking solutions.
• Knowledge of WAN, LAN/WLAN, VLAN concepts and network security principles.

Responsibilities

• Operate, maintain and support enterprise network infrastructure components.
• Investigate, diagnose, and resolve network incidents to ensure service continuity.
• Ensure performance, resilience and security align with SLAs.
• Utilize monitoring tools to analyze load and performance metrics.
• Install, configure and upgrade network components and monitoring solutions.

Skills

Networking

Troubleshooting

Analytical thinking

Documentation

Education

Bachelor's degree in Computer Science/Engineering

Tools

Palo Alto

F5

Cisco networking

VPN technologies

Job description

Why are you looking for a job?

If your answer ticks all the boxes, this could be the start of a great collaboration.

• You have a curious mind - You won't understand what we're talking about if you don't
• You want to learn more around technology - You won't survive if you don't
• You want to make the world a bit better

We happen to be just like that as well. We like hacking things here and there (you included) and create scalable solutions that bring value to the world.

SquareDev?

We use state-of-the-art technology to build solutions for our customers and our partners' customers. We make sure we stay best-in-class by participating inresearch projects across Europe, collaborating withtop universities and enterprisesonAI, Data, and Cloud.

About QnR Group

SquareDev is a member of the QnR Group, a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions.

As part of QnR Group's ongoing expansion — both in Greece and internationally — we are continuously hiring across a wide range of tech roles. Successful candidates may be hired by QnR Group, or another company within the Group, depending on the role and project.

Role overview

We are looking for a Network Administrator to join one of our EU public sector clients based in Brussels. You'll ensure operations of the network, including telecommunication and/or computer infrastructure to meet the organisation’s communication needs.

The ideal candidate will be responsible for:

• Operate, maintain and support enterprise network infrastructure components.
• Investigate, diagnose, and resolve network incidents and performance issues to ensure service continuity.
• Ensure communication performance, resilience, and security requirements are aligned with agreed service level standards.
• Utilize network management and monitoring tools to analyze network load and evaluate performance metrics.
• Proactively monitor network traffic to identify and mitigate bottlenecks and optimize overall performance.
• Install, configure, and upgrade network components and network monitoring solutions.
• Perform testing and validation activities following infrastructure upgrades and changes.
• Contribute to the continuous improvement of network availability, reliability, and security.

To excel in this role, you'll need:

• Bachelor's degree in Computer Science, Engineering or a related technical field.
• Strong hands-on expertise with Palo Alto and F5 technologies.
• Solid experience with Cisco networking solutions.
• Good understanding of networking concepts and communication protocols, including WAN, LAN/WLAN and VLAN.
• Knowledge of network security principles, VPN technologies, and cryptographic communication techniques.
• Experience operating and managing network devices and services, including routers, switches, load balancers, accelerators, firewalls and cryptographic communication devices.
• Familiarity with network monitoring and performance management tools.
• Strong troubleshooting and analytical skills, with the ability to identify and resolve complex network issues.

Certifications you'll need:

At least 1 certificationfrom the following:

• CCDP/CCNP, CCNA, CCDE/CCIE, CCAr or relevant certifications of F5, Juniper, Palo Alto
• BIG-IP certified administrator
• BIG-IP LTM Specialist: Maintain and Troubleshoot
• BIG-IP LTM Specialist: Architect, Set up, Deploy
• SANS certification related to Network Security