Network Engineer

Telio Group

Brussels, Belgium Posted October 25, 2026

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Hybrid Full-time Mid level
Job Description

Your mission
Operate, maintain, and support on‑premise, virtualized, cloud, and hybrid network environments across Cisco, Fortinet, Extreme, Azure, and AWS
Ensure high availability, performance, and security of network infrastructure, following defined operational and change management processes
Manage and operate firewall and network security platforms, including firewall rules, NAT policies, segmentation, and cloud‑native security controls
Support and troubleshoot Kubernetes networking
Operate and monitor hybrid connectivity solutions such as Site‑to‑Site VPNs, Client VPNs, ExpressRoute, and Direct Connect
Act as 2nd‑level support for network and connectivity incidents, analyzing escalations and resolving recurring operational issues
Monitor network environments using centralized tools, analyze logs, metrics, and traffic flows, and proactively identify risks
Execute network changes and lifecycle activities using Infrastructure as Code and Git‑based workflows
Maintain accurate technical documentation, incident records, and operational procedures
Support disaster recovery testing, audits, and compliance activities
Collaborate with an international IT and platform team, contribute to standardization and automation initiatives, and participate in on‑call rotations
Your profile
3+ years of experience in Network Engineering or Network Operations
Strong knowledge of routing, switching, VPN technologies, firewalls, and network security
Experience with multi-vendor enterprise network environments
Hands-on troubleshooting skills across on-premises and cloud-based infrastructures
Experience with network automation tools such as Ansible and Terraform
Good understanding of Azure and/or AWS networking
Relevant certifications such as CCNA, Fortinet, Extreme Networks, or equivalent
Strong focus on operational excellence, reliability, and documentation
Excellent communication skills and experience working in international teams
Fluent English and French, both written and spoken
Willingness to travel internationally (approximately 10-20%)
Nice to Have:
Experience with Kubernetes networking
Knowledge of Infrastructure as Code and Git-based workflows
Familiarity with ITSM processes and tools such as Jira
Experience with enterprise telephony or VoIP systems
Key Skills:
Network Automation (Ansible, Terraform)
Routing & Switching
Firewalls & Network Security
VPN Technologies
Enterprise Network Infrastructure
Troubleshooting & Operational Support
Azure / AWS Networking
Multi-Vendor Environments (Cisco, Fortinet, Extreme, etc.)
Why us?
In accordance to the Belgian Law we offer our employees:
20 days vacation
Vacation pay: You get 92% of one monthly gross as vacation pay
Holiday pay: You get 1 month salary in December on top
Additionally we provide:
You receive Pluxee meal vouchers for your working days
A company phone with contract
Snacks and drinks in the office

Required Skills
network engineering Azure Amazon Web Services change management segmentation troubleshooting Kubernetes escalation management Git testing audit compliance collaboration Ansible Terraform communication
How to apply

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