Endpoint Security Expert

Duties & Requirements

Position: CSU Brussels – Endpoint Security Expert
Reference Number: C005192
Equivalent NATO Grade: G12
Work Location: Brussels, Belgium
Security Clearance: NATO Secret

1. Main Duties and Responsibilities

The Endpoint Security Expert will be responsible for managing, maintaining and improving NATO's endpoint security environment, with a particular focus on Trellix security products.

Key responsibilities include:

1. Endpoint Security Management

• Manage the complete lifecycle of assigned endpoint security products.

• Maintain and develop security policies, configurations, baselines, exclusions and exceptions.

• Ensure endpoint security solutions are aligned with NATO security requirements and industry best practices.

2. Trellix Product Management

• Manage the full range of Trellix products, including Threat Prevention, Application Control, Host Firewall, Data Loss Prevention (DLP) and Drive Encryption.

• Plan, coordinate and lead Trellix product upgrades at least every two months.

• Deploy upgrades across Windows laptops, workstations, VDI environments, and Windows/Linux servers.

3. Security Operations and Incident Response

• Support incident response activities in collaboration with CSU teams and the Service Desk.

• Investigate and troubleshoot Trellix-related incidents and technical problems.

• Analyse security events, logs, alerts and endpoint data exchanges.

• Perform root cause analysis and resolve performance-related issues.

4. Security Policy Implementation

• Test and implement NATO endpoint security policies.

• Optimise security configurations and policies to balance protection and system performance.

• Manage security exceptions through established approval procedures.

5. Technical Advisory and Collaboration

• Provide technical expertise and guidance on endpoint security architecture and engineering decisions.

• Work closely with IT administrators, security teams and other stakeholders.

• Ensure endpoint configurations meet security standards and operational requirements.

6. Documentation and Continuous Improvement

• Develop and maintain Standard Operating Procedures (SOPs).

• Document technical processes, configurations and operational procedures.

• Contribute to the continuous improvement of endpoint security processes, standards and governance.

• Promote knowledge sharing across technical teams.

2. Required Skills, Knowledge and Experience

3. Contract and Working Conditions

4. Ideal Candidate Profile

The ideal candidate is a senior Endpoint Security Engineer / Trellix Security Specialist with extensive practical experience managing enterprise endpoint protection solutions in a complex, security-sensitive IT environment.

The candidate should demonstrate:

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