Senior Network Engineer

Community Consulting; Brussel Hoofdstad; Hybrid; EUR 65,000 - 100,000; Full time

Job summary

Community Consulting is seeking a Senior Network Engineer to lead design, deployment and operation of network infrastructure across IT and OT environments in Belgium and Europe. The role focuses on security, maintenance, and modernization of data centres, cloud connectivity, and WAN projects.

You will work in Brussels/ Anderlecht with initial three months on-site, then a hybrid pattern may apply. Strong knowledge of routing, switching, Cisco tech and automation is required, along with English

Qualifications

• Senior-level experience in network engineering and operations.
• In-depth knowledge of routing and switching protocols (OSPF/IS-IS/BGP/MST).
• Experience with Cisco Wireless technologies.
• Strong experience with cloud technologies.
• Experience using Python and/or Ansible for network automation.
• Knowledge of network monitoring, NAC and centralized syslog solutions.
• Knowledge of Cisco ACI or Cisco SD-WAN.
• Understanding of firewall technologies.
• Background in computer science.
• Proficiency in Dutch or French and fluency in English.
• Ability to work independently and collaboratively within technical teams.
• Willingness to travel to Brussels/ Anderlecht locations.
• Willingness to participate in on-call standby rotations.
• Availability to work full-time on-site during the first three months.

Responsibilities

• Operate and maintain network infrastructure supporting 24/7 business operations.
• Support both IT and OT network environments.
• Prepare and execute network changes with attention to operational continuity.
• Participate in deployment and maintenance of IT infrastructure and network systems.
• Support colleagues and operational teams across Belgium and other European locations.
• Manage and troubleshoot routing, switching and wireless networking technologies.
• Contribute to network infrastructure projects involving data centres, cloud connectivity and WAN modernization.
• Collaborate with other ICT teams to support evolving business requirements.
• Participate in an on‑call standby rotation of up to one week in four.

Skills

Routing protocols

OSPF/IS-IS/BGP/MST

Cisco Wireless

Cloud networking

Python/Ansible

NAC & Syslog

Cisco ACI/SD-WAN

Firewall technologies

English fluency

Dutch or French

Independent + team work

On-call readiness

Travel to Belgium

Education

Background in Computer Science

Tools

Azure networking

Check Point firewall

Palo Alto firewall

Cisco Wireless devices

Zabbix

Job description

We are looking for a Senior Network Engineer to join a network team responsible for the deployment, security, maintenance and operations of critical network infrastructure across industrial (OT) and corporate (IT) environments.

The infrastructure supports 24/7 business operations across Belgium, France, the United Kingdom, Germany and Switzerland.

The team manages network connectivity from LAN and WAN to data centres and cloud environments, primarily using Cisco technologies.

The role involves supporting infrastructure modernization, cloud connectivity, new data centre deployments and ongoing network operations.

The mission is based between Brussels and Anderlecht, Belgium, for an initial period of 12 months, renewable, with an immediate start.

Full-time on-site presence is required during the first three months. Afterwards, hybrid working may be possible, with three on-site days per week, subject to operational requirements.

Responsibilities

• Operate and maintain network infrastructure supporting 24/7 business operations.
• Support both IT and OT network environments.
• Prepare and execute network changes with particular attention to operational continuity.
• Participate in the deployment and maintenance of IT infrastructure and network systems.
• Support colleagues and operational teams across Belgium and other European locations.
• Manage and troubleshoot routing, switching and wireless networking technologies.
• Contribute to network infrastructure projects involving data centres, cloud connectivity and WAN modernization.
• Collaborate with other ICT teams to support evolving business and application requirements.
• Participate in an on‑call standby rotation of up to one week in four.

Must have

• Senior‑level experience in network engineering and operations.
• In‑depth knowledge of routing and switching protocols, including OSPF, IS‑IS, MP‑BGP and MST.
• Experience with Cisco Wireless technologies.
• Strong experience with cloud technologies.
• Experience using Python and/or Ansible for network automation.
• Knowledge of network monitoring, Network Access Control (NAC) and centralized syslog solutions.
• Knowledge of Cisco ACI or Cisco SD‑WAN.
• Understanding of firewall technologies.
• Background in computer science.
• Proficiency in Dutch or French and fluency in English.
• Ability to work independently and collaboratively within technical teams.
• Willingness to work across the Brussels and Anderlecht locations.
• Own car and ability to travel to Belgian company sites when required.
• Willingness to participate in an on‑call standby rotation.
• Availability to work full‑time on‑site during the first three months.

Should have

• Experience operating network infrastructure in 24/7 environments.
• Experience working across both IT and OT environments.
• Familiarity with Cisco ASR, ISR, Catalyst and Nexus devices.
• Experience with Microsoft Azure networking environments.
• Understanding of Check Point and Palo Alto firewall technologies.
• Strong change preparation and execution practices.
• Good communication skills, teamwork and a proactive approach to supporting colleagues.

Nice to have

• Knowledge of TACACS and RADIUS servers.
• Experience with Zabbix monitoring.
• Experience with Elastic for centralized logging and analysis.
• Familiarity with Cisco Identity Services Engine (ISE).

Who we are

Community Consulting goes beyond traditional consulting; it’s all about fostering connections in an atmosphere of trust and confidence.
Transparency & Honesty : We say things as they are. Clear communication for seamless collaboration.
#COMMUNITEAM : Work independently, but never alone. Collective intelligence drives us further, faster.
Total Commitment : Always present, always engaged. We find solutions and make sure everyone moves forward together.
Guaranteed Efficiency : No fluff, just results. We act fast, keep our promises, and deliver top quality.
This is our DNA. This is how we make a difference.