Infrastructure Security Architect – Microsoft Azure & Zero Trust

Our client, a leading organization in the transport infrastructure sector, is looking for an Infrastructure Security Architect to define and validate IT/OT security architectures. This role focuses on integrating Security by Design and Zero Trust principles into critical projects while ensuring compliance with international cybersecurity standards.

• Define and validate IT/OT security architectures to ensure robust protection across the infrastructure.
• Integrate Security by Design and Zero Trust principles into ongoing and new projects.
• Perform risk analyses and identify technical vulnerabilities within the environment.
• Monitor compliance with standards such as NIS2, ISO 27001, IEC 62443, CIS, and NIST.
• Guide project teams in implementing cybersecurity requirements and evaluating vendor solutions for resilience.
• Contribute to cyber governance and the continuous improvement of the organizational security posture.
• Participate in a 24/7 on-call rotation to ensure infrastructure stability.

• You have 5+ years of experience with Zero Trust models and Security by Design principles.
• You possess 5+ years of expertise in risk analysis, vulnerability management, and technical security assessments.
• You bring 5+ years of experience working with compliance frameworks such as NIS2, ISO 27001, IEC 62443, CIS, and NIST.
• You have 5+ years of experience in cloud and network security within critical infrastructures, specifically focusing on Microsoft Azure.
• You possess 5+ years of experience with Microsoft Defender (XDR, Endpoint, Cloud, Identity) and Microsoft Sentinel (SIEM/SOAR).
• You bring 5+ years of experience managing Microsoft Entra ID, Conditional Access, MFA, and Microsoft Purview.
• You have 1+ years of experience in IT/OT cybersecurity and secure architecture definition.
• You're proactive and solution-oriented.
• You are fluent in Dutch or French with professional proficiency in English.

• Start date: 04-01-2027
• Duration: 5 years
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid with 24/7 on-call availability
• Contract: open to both permanent employees and freelancers