Senior Network Security Engineer

Agad Technology
Brussels, Belgium
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
Dutch, English, French
Experience level
Senior

Job location

Brussels, Belgium

Tech stack

Private Networks
Proxy Servers
Azure
Cloud Computing
Computer Security
System Configuration
Continuous Integration
DNS
IP Routing
Virtual Private Networks (VPN)
Multi-protocol Systems
Network Security
Network Troubleshooting
Network Architecture
Ansible
Zero Trust Network Access
Terminal Access Controller Access-Control System (TACACS)
Wireshark
Wi-Fi Technology
Scripting (Bash/Python/Go/Ruby)
Load Balancing
Firewalls (Computer Science)
Routing & Switching
Vulnerability Analysis

Job description

Large public transport operator based in Brussels, responsible for managing metro, tram, and bus networks across the region. The organization operates a complex and critical infrastructure and relies heavily on secure, high-performing IT and network systems to ensure safe and continuous daily operations.

Due to the essential nature of public transportation services, strong emphasis is placed on network security, reliability, and operational resilience, making IT security roles highly strategic within the organization., The consultant will play a key role in designing, implementing, and maintaining network security solutions, while also contributing to automation initiatives and operational excellence., * Designing and implementing network security strategies

  • Configuring and maintaining:

  • Firewalls

  • VPNs

  • Proxies (forward/reverse)

  • Load balancers

Monitoring networks to detect and respond to security incidents Performing security audits and vulnerability assessments Supporting and coaching the internal network team Creating automation solutions and playbooks Contributing to process documentation (including compliance such as NIS2) Acting as a technical expert in incident resolution and cross-team collaboration

Requirements

The ideal candidate is a Senior-level Network Security Engineer with strong expertise in network infrastructure and security., * Network security (firewalls, VPN, proxies, WAF)

  • Routing & switching (IP routing, MPLS, WiFi)
  • Load balancing

Experience with:

  • Cloud networking (Azure, ExpressRoute)
  • Secure access concepts (ZTNA)

Strong knowledge of:

  • DNS
  • TACACS
  • Security protocols and cryptography

Automation & tooling:

  • Experience with:

  • Automation tools (Ansible)

  • Scripting

  • Algosec

  • Netskope

Monitoring & troubleshooting:

  • Strong experience in:

  • Security incident management

  • Network troubleshooting (Wireshark)

  • Problem management

Additional expectations:

  • Ability to design and maintain automation playbooks
  • Contribution to CI/CD and infrastructure automation
  • Ability to perform code/configuration reviews

Language:

  • French or Dutch: Excellent
  • Second national language: Good understanding
  • English: Good

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