IT Senior Network Engineer

Keystone Solutions • Brussels, Brussels, Belgium • Posted June 25, 2026

Location Brussels, Brussels
Job Type full time
Category Computer Occupations
Posted June 25, 2026

Mission Overview:

Keystone Solutions is seeking an IT Senior Network Engineer for a consultancy mission at a client site. In this role, you will contribute to the implementation of network segregation and maintain the LAN infrastructure.


Responsibilities:

  • Maintenance and updates of the Extreme Networks infrastructure
  • Monitoring security tickets (CVE) related to the LAN (Switch, Wifi, NAC, etc.)
  • Second-line user support
  • Programming of Extreme switches
  • Project DRP oversight: design and implementation of Extreme hardware
  • Physical maintenance of the data center (racks)
  • Monitoring (Solarwinds): configuration, testing, implementation, alarming & dashboard
  • Configuring Nozomi tool for OT, Assainissement (mirror ports Extreme)
  • XIQ tool management
  • OT network resilience
  • Lynx8 project: fine-tuning of the implementation
  • Documentation of new requ...

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