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fortil

Network Security Engineer

Hybrid

Brussels, Belgium

Full Time

10-02-2026

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Skills

Python Network Security Firewalls Monitoring Ansible Change Management Problem-solving Azure Zabbix Microsoft Azure

Job Specifications

Your technical environment:

Our Network Security Engineers are involved in managing multidisciplinary projects. We are currently taking charge of large-scale initiatives in the mobility sector, focused on an activity transition that involves change management from both a human and organizational perspective.

Your professional responsibilities:

To support the team, you will be able to take the lead on all or part of the following responsibilities:

Work on the complete network infrastructure (LAN, WAN, datacenter, cloud) in both IT and operational technology environments running 24/7.

Support colleagues across European sites and contribute to projects like WAN upgrades, cloud migrations, and datacenter connectivity.

Tech stack you need to know:

• Firewalls: Checkpoint (essential) and Palo Alto

• Routing/switching protocols: OSPF, ISIS, MST

• Cisco gear: ACI, SD-WAN, routers (ASR, ISR), switches (Catalyst, Nexus), Wireless

• Cloud: Microsoft Azure

• Automation: Python and/or Ansible

• Monitoring tools: Zabbix, Elastic, NAC, syslog

• Authentication: TACACS and RADIUS

You demonstrate a strong willingness to further professionalize yourself and develop any missing skills.

Your profile and personality:

• You speak Dutch OR French + good English

• IT/computer science background

• Can work independently but also as part of a team

• Own car and willing to travel to Belgian sites when needed

• Open to on-call duty (roughly 1 week every month)

• Careful and thorough - you're working with critical infrastructure

You have a strong appetite for complex projects and problem-solving. You are recognized for your curiosity and technical culture, both professionally and personally. You readily question yourself and constantly seek to improve.

You take initiative, lead projects, and commit to engagements. You challenge your methods and ideas to push yourself further and achieve a high level of excellence. In this context, your drivers may be technical, financial, or human, and you will be valued based on your performance and/or that of your team.

Compensation:

Compensation will depend on years of experience and the specificity of technical expertise.

Attractive benefits package including:

Company car / Mobility budget, fuel card, representation expenses, meal expenses, DKV Premium Plan A to Z, pension insurance, eco vouchers, summer bonus.

Employment type:

Full-time

About the Company

Fortil is an engineering group and technology consulting, a model designed by entrepreneurial engineers. Working with Fortil means working with an ambitious and expert community, driven by accuracy, challenge and emulation. Today, more than 2,000 of us work every day to make Fortil the largest independent engineering company in Europe. Our ambition is to contribute to building a more responsible, communal and inclusive world for our employees and clients. Find out more on fortil.group Know more