16178
02-03-2026
First Line Security Event Analyst (FLSEA)
Mons

C004645, First Line Security Event Analyst (FLSEA)

Duties

As a First Line Security Event Analyst (FLSEA), the incumbent will perform initial analysis of logs and network traffic, determine alert severity and escalate when required. The analyst will collate information and present findings in a clear, structured format, providing remediation recommendations and first line response where applicable.

Main responsibilities:

  • Conduct research and assessments of security events within NATO Cyber Security Centre (NCSC) team.
  • Provide analysis of firewall, IDS, anti-virus and other network sensor produced events and present findings.
  • Appropriately leverage the comprehensive extended toolset (e.g. Log Collection, Intrusion Detection, Packet Capture, VA, Network Devices etc.) for enhancing investigations.
  • Support the end-to-end Incident Handling process.
  • Support threat intelligence sharing and block list management activities.
  • Propose optimisations and enhancements which help to maintain and improve NATO's Cyber Security posture.

Requirements

A university degree in a technical subject with a focus on Information Technology (IT), obtained from a nationally recognised/certified institution in addition to a minimum of 1 year experience in the field of cyber security analysis. The lack of a degree may be compensated by at least 3 years of relevant experience in field of cyber security analysis. Similarly, candidate's lacking experience can compensate by demonstrating a high level of knowledge in the field of cybersecurity.

  • Comprehensive knowledge of the principles of computer and communications security including knowledge of TCP/IP networking, Windows and Linux operating systems.
  • Broad understanding of common network security threats and mitigation techniques.
  • Experience in the following:
  • Security Information and Event Management products (SIEM) – e.g. Splunk.
  • Analysis of Network Based Intrusion Detection Systems (NIDS) events– e.g. FirePower, Palo Alto Network Threat Prevention.
  • Log analysis from a variety of sources (e.g. Firewalls, Proxies, Routers, DNS and other security appliances).
  • Network traffic capture analysis using Wireshark.
  • Logical approach to analysis and ability to perform structured
  • The candidate has strong customer relationship skills, including negotiating complex and sensitive situations under pressure.
  • Full proficiency in the English language. French language proficiency is of advantage.
  • The candidate must have the nationality of one of the NATO nations.
  • The candidate must possess a NATO Se#cret Se#curity Clearance or national equivalent

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