Network Engineer

Telio Management GmbH.; Brussel Hoofdstad; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

20 days vacation

Vacation pay: 92% of one monthly gross

Holiday pay: 1 month salary in Dec

Job summary

Telio Management GmbH. is seeking a Network Engineer to operate, maintain, and optimize on‑premise, virtualized, cloud, and hybrid networks across Cisco, Fortinet, Extreme, Azure, and AWS.

You will implement changes via IaC and Git workflows, while ensuring security, reliability, and documentation across international teams. The role requires 3+ years in Network Engineering or Operations, strong VPN/firewall skills, and certifications such as CCNA, Fortinet, or Extreme.

Qualifications

• 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 across on-prem 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%).

Responsibilities

• 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.

Skills

Network Automation

Routing & Switching

Firewalls & Security

VPN Technologies

Azure Networking

AWS Networking

Multi‑Vendor Environments

Troubleshooting

CCNA / Fortinet / Extreme

Education

Tools

Terraform

Ansible

Jira

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