Endpoint Security Operations Specialist (Windows and Linux Estate) for NATO with security clearance

WLG; Brussel; Hybride; EUR 60 000 - 90 000; Plein temps

Résumé du poste

WLG in Brussels seeks an on-site hybrid Endpoint Security Engineer to manage Trellix across Windows and Linux endpoints and servers, keeping environments healthy and understood rather than merely installed.

In a multinational defence context, you will follow ITIL processes, ensure high availability, analyze events and logs, drive root-cause analysis, document your work and share knowledge so the team is not dependent on one person, and take ownership of issues.

Qualifications

• Hands-on Trellix implementation and management across Windows and Linux.
• Experience delivering IT services in complex environments using ITIL processes.
• Strong root-cause analysis and problem-solving abilities.
• Excellent documentation and knowledge-sharing habits.

Responsabilités

• Implement and manage Trellix products on Windows endpoints and Windows/Linux servers.
• Deliver service in a complex IT environment while maintaining high availability.
• Analyze security events, logs and endpoint data exchanges.
• Drive root-cause analysis and resolve issues.
• Document activities and share knowledge to reduce single points of failure.
• Take ownership of technical issues and see them through.

Connaissances

Trellix experience

ITIL

Root-cause analysis

Documentation

Independent work

Communication

Outils

Trellix suite

Windows

Linux

Description du poste

Endpoint security is where a lot of good intentions meet a lot of real machines. A multinational defence organisation in Brussels needs someone who genuinely knows the Trellix product range and can run it across a mixed Windows and Linux estate — not just install it, but keep it healthy, tuned and understood.

The role mixes engineering with service delivery: high availability matters, ITIL process matters, and so does the ability to take an alert nobody can explain and follow it to its root cause.

What You Would Be Doing

• Implement and manage the full range of Trellix products — threat prevention, application control, host firewall, data loss prevention, drive encryption and the rest — on Windows end user devices and on Windows and Linux servers.
• Deliver that service in a complex IT environment, following ITIL processes and keeping availability high.
• Analyse security events, logs, alerts and endpoint data exchange.
• Drive root cause analysis and problem solving on issues that do not resolve themselves.
• Document what you do and share the knowledge so the team is not dependent on one person.
• Take ownership of technical issues and see them through.

What we are looking for

• Recent, hands‑on experience implementing and managing the Trellix product range across Windows and Linux.
• Service delivery experience in a complex IT environment, working to ITIL processes.
• Strong root cause and problem‑solving skills, and strong analytical skills generally.
• Strong documentation and knowledge‑sharing habits.
• The ability to work independently and take ownership.
• Strong communication and coordination skills.

The role is based in Brussels, Belgium, on site for most daily activity with a limited possibility of one day a week remote, from early November to the end of December 2026.