As part of the Computer Security Incident Response Team (CSIRT), you will contribute to the detection, analysis, and response to security incidents for Thales and its clients operating in highly critical environments. This position is ideal for a hands-on cybersecurity professional passionate about incident response, threat analysis, and digital forensics, looking to grow within one of Europe's most advanced cyber defense organizations. Responsibilities Analyse and process security incidents, including IoC extraction, log analysis, malware review, and forensic investigation Execute documented response procedures from analysis to reporting Perform breach analysis and root cause identification Support customers and manage cybersecurity-related tickets Conduct Incident Response Readiness Assessments and audits Collaborate with the wider CERT community and contribute to cybersecurity events Ensure compliance with the CSIRT Code of Practice and data protection regulations Profile Minimum 3 years of experience in cybersecurity, ideally within CSIRT, SOC, or Dfir environments Proven experience in incident handling, forensics, or threat analysis Familiarity with SIEM, EDR, MISP, Cortex, or similar tools Good understanding of ISO 27001, NIS2, and risk or incident management processes Fluent in English and either French or Dutch Strong analytical mindset, structured documentation skills, and ability to work autonomously Preferred Certifications :GCIH, GCIA, GNFA, Grem, GSEC, Ecppt, OSCP, CEH