CSOC Security Analyst (Senior)

16/07/2025

Our client is looking for a Security Analyst.

As a Cyber Security Operations Center (CSOC) Security Analyst, you are responsible for identifying security problems and proposing solutions. You work closely with SOC analysts and the infrastructure/development teams, using information collected through our EDR, IDS, and SIEM systems.

You contribute input to ensure necessary improvements are made in our (application) infrastructure, both for detecting incidents and preventing them. As a Senior Security Analyst, you coach your more junior colleagues and actively contribute to improving infrastructure/development processes and reporting.

You:

  • Are results-oriented, both individually and as part of a team
  • Enjoy following up on incidents and solving the puzzles they present
  • Have excellent knowledge of the cybersecurity landscape
  • Are proficient with a wide range of security tools
  • Can recommend improvements to tool configurations
  • Stay up to date with industry trends and technological developments
  • Communicate clearly and effectively
  • Work well independently and collaboratively
  • Balance adherence to principles with pragmatic decision-making
  • Demonstrate leadership and coach junior analysts
  • Collaborate constructively with other teams
  • Ensure clear, accessible, and well-documented reporting in English

Skills and Knowledge

  • Extensive experience as a senior CSOC security analyst across multiple domains
  • Inspirational leadership, motivating and guiding colleagues
  • Hands-on knowledge of configuring:
  • Networks
  • Servers and workstations
  • Peripherals for secure operation
  • Technical proficiency with:
  • Microsoft Windows
  • Linux
  • Android
  • Knowledge-sharing mindset, ensuring your expertise is transferred and applied
  • Familiarity with security frameworks, such as:
  • NIST Cybersecurity Framework (CSF)
  • ISO 27001
  • Understanding of IT risk management principles
  • Strong grasp of security concepts, including:
  • Zero Trust
  • SIEM and SOAR
  • PKI and cryptography
  • DevSecOps
  • Identity and Access Management (IAM)
  • Privileged Access Management (PAM)
  • Cloud security
  • Experience with security monitoring and response tools, such as:
  • SIEM
  • SOAR
  • EDR
  • IDS/IPS
  • Ability to adapt quickly to new and complex environments
  • Initiative in gathering information and engaging with colleagues proactively

    Professional Experience

    • At least 10 years of experience in a security-related role
    • At least 5 years of experience specifically as a SOC Security Analyst
    • Led a team of at least 5 people
    • Conducted vulnerability assessments
    • Worked with Blue Team tools, including:
    • tcpdump / Wireshark
    • Elastic SIEM
    • Splunk
    • QRadar
    • Cortex
    • Darktrace
    • Security Onion
  • Used Red Team tools, such as:
  • Nmap
  • Burp Suite
  • Nessus
  • Metasploit

    Work Environment

    You will be working in a context with specific challenges related to the nature of the mission. Cybersecurity is a strategic priority, and additional investments are planned in the coming years — giving you the opportunity to help shape the future of this domain.

    Your work has significant societal impact, contributing to national security by:

    • Preventing security risks
    • Advising political, judicial, and military authorities
    • Disrupting threats

    You:

    • Hold Belgian nationality
    • Speak either French or Dutch as your primary language
    • Have at least solid knowledge of the other national language and English
    • Have a strong sense of responsibility and discretion
    • Either already hold or are willing to obtain a Top Secret security clearance (no cost to you)

    Important:

    • Remote work is not possible
    • You must be present on-site in Brussels 5 days per week
    • Your workplace is within walking distance of Brussels North station
    • Working hours are highly flexible
  • Job specifications

    ID: 10654

    Duration: 01/10/2025 - 30/09/2026

    Location: Brussels

    Type: Freelance

    Hatim Daoudi

    IT Recruitment Consultant
    This position is no longer accepting applications.