Network Engineer

Telio Group; Evere; On-site; EUR 55,000 - 90,000; Full time

Benefits offered by this job

Vacation days (20)

Vacation pay: 92% of one monthly gross

Holiday pay: 1 month salary in Dec

Meal vouchers (Pluxee)

Company phone

Snacks and drinks in the office

Job summary

Telio Group is seeking a Network Engineer to operate, maintain and support on-premise, virtualized, cloud, and hybrid networks across Cisco, Fortinet, Extreme, Azure, and AWS. You will ensure availability, performance, and security following defined change management processes, and support Kubernetes networking.

The role also includes firewall management, VPN connectivity, and on-call rotations in an international team. Fluent English and French are required; travel 10–20% is expected.

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 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%).

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.
• Collaborate with an international IT and platform team, contribute to standardization and automation initiatives, and participate in on-call rotations.

Skills

Network Engineering

VPN technologies

Troubleshooting

Documentation

International teams

English and French

Cloud networking

Education

CCNA or equivalent

Tools

Ansible

Terraform

Jira

Job description

• 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 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

About Us

Telio is a medium‑sized, internationally active, rapidly growing company in the field of telecommunications and IT services in the prison sector. As the European market leader, we have been providing communications solutions for prisons and their inmates worldwide for over 25 years. With more than 300 employees, we are active in 23 countries and develop, install and operate communication and media systems that make an important contribution to resocialization in prisons as well as in correctional facilities.