CISO Security Architect

We are looking for an experienced Security Architect with strong expertise in Operational Technology (OT) to support the design, governance, and continuous improvement of enterprise security architecture across complex hybrid environments. The role focuses on identifying, assessing, and mitigating cyber and information security risks within mission-critical and digitally transformed environments. The Security Architect will play a key role in ensuring that security principles, standards, and controls are embedded across IT and OT architectures, in alignment with enterprise architecture methodologies and regulatory frameworks., Security Architecture Design & Development Develop and implement security policies, standards, protocols, and procedures Design secure architectures and network solutions to protect against cyber threats Ensure security controls are integrated into system and solution designs Support architects and engineering teams in embedding security best practices Risk Assessment & Management Review architecture proposals and assess residual risks Participate in architecture governance forums and design approval processes Conduct security risk assessments and oversee penetration testing activities Define risk mitigation strategies and recommend security controls Monitor emerging threats and adapt security strategies accordingly Ensure proper documentation and reporting of vulnerabilities in risk registers Compliance & Standards Ensure alignment with security frameworks such as ISO 27001, NIST, IEC 62443, and relevant regulatory requirements Contribute to the development and enforcement of security standards across the organization Support compliance activities and audits in collaboration with stakeholders Collaboration & Communication Work closely with IT, business, and security teams to integrate security into all projects Communicate security risks, recommendations, and requirements to both technical and non-technical audiences Provide guidance and awareness on security best practices Incident Response Support Support security incident handling and investigation activities Contribute to post-incident analysis and remediation planning Recommend corrective actions to prevent recurrence Technology Evaluation Evaluate and recommend security tools, platforms, and technologies Stay up to date with emerging cybersecurity trends and innovations Support deployment and configuration of security solutions Threat Modeling Develop and apply threat modeling methodologies Conduct threat modeling for new and existing systems Provide security input during solution design phases Security Governance Support Contribute to the definition and evolution of security capabilities, services, and processes Support prioritization of security initiatives and transformation programs

Master’s degree in Cybersecurity, Computer Science, Engineering, Mathematics, or equivalent Minimum 10 years of experience in cybersecurity, including at least 3 years in critical infrastructure or defense environments Minimum 3 years of experience in OT within complex hybrid environments (IT / OT / IoT / Cloud / ERP) Strong knowledge of security frameworks (ISO 27001, IEC 62443, NIST, etc.) Certifications such as ISO 27001 Lead Auditor, IEC 62443, or equivalent NIS2-related training Proven experience in enterprise security architecture across domains (network, application, data, IAM, authentication, PKI, SIEM, monitoring, cloud security, etc.) Experience in risk assessment, gap analysis, and large-scale security programs Strong stakeholder management and communication skills Structured, analytical, and solution-oriented mindset Autonomous, rigorous, and capable of managing priorities in complex environments Fluent in English and either French or Dutch (professional level) Willingness to work on-site when required