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OneSource Consulting

CSOC Analyst (IT Security Incident Responder)

OneSource Consulting
Belgium · Full-time · Mid-Senior

Role: CSOC Analyst (IT Security Incident Responder)

Languages: French or Dutch (any 1) and English

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

Location: 1000 Brussels, Belgium

Work mode: Onsite

Note: Please confirm that you have Belgian nationality.


Senior CSOC Analyst

As a CSOC analyst, you are responsible for managing security incidents. You assess the threat, take appropriate action, and document it in the case management system. To do this, you use information collected by our EDR, IDS, and

SIEM systems.

You contribute to making the necessary improvements to our (application) infrastructure, both for incident detection and prevention.

You coach your junior colleagues and actively contribute to improving infrastructure/development processes and reporting. You're not alone: you're actively supported by your senior CSOC analyst.

You have excellent knowledge of the security landscape and are comfortable navigating various tools.

You are able to use them and make recommendations on how to configure these tools to improve them.

You are eager to learn and want to stay up to date with industry trends and technological developments.

Your skills

You are A CSOC analyst with experience in several fields.

- You are someone who inspires colleagues.

- You know how to configure networks, servers/workstations and peripherals to work safely.

- You have in-depth knowledge of Microsoft Windows, Linux and Android.

- You actively pass on your knowledge to your colleagues and ensure that it is applied.

- Knowledge of IT security standards (NIST CSF, ISO 27001, for example) and IT risk management are added value.

- A good understanding of IT security concepts is important (Zero Trust, SIEM, SOAR, PKI and cryptography, DevSecOps, IAM and PAM, cloud security, etc.).

- You have knowledge and experience in security incident tracking and security monitoring and response tools, such as SIEM, SOAR, EDR, IDS/IPS.

- You work quickly in a new, complex environment.

- You are able to collect information yourself and are not afraid to challenge your colleagues.

The experience you bring

  • You must have at least 5 years of experience in a security-related role, including at least 3 years of experience in a SOC Analyst role.
  • You coached new colleagues.
  • You have experience with vulnerability assessment.
  • You have experience with Blue Team tools: tcpdump/Wireshark, Elastic SIEM/Splunk/Qradar, Cortex/ Darktrace, Security Union, ...
  • You have experience with Red Team tools: Nmap, Burpsuite/Nessus and/or Metasploit, ...

Skills:

  • Agile
  • EDR
  • Elastic Log/Kibana
  • ISO 27001:2005
  • NIST
  • SIEM
  • Wireshark
  • Zero Trust

Key Skills

Ranked by relevance

siem cloud security metasploit linux cloud nist nmap ids
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Posted
Jul 24, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels Region

Industries

Information Technology & Services

Categories

Information Technology

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