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OT Security Engineer


We are seeking a highly skilled OT Security Engineer to support our industrial and operational environments across multiple sites in Belgium. As part of a cross-functional security team, you’ll lead the implementation and management of cybersecurity controls within OT networks and production systems. This role plays a key part in ensuring compliance with NIS2, IEC 62443, and internal cyber risk frameworks.


Key Responsibilities


  • Design, implement, and manage OT/ICS cybersecurity solutions in manufacturing or critical infrastructure environments
  • Conduct OT asset discovery, segmentation, and risk assessments
  • Deploy and configure firewalls, anomaly detection systems, and network monitoring tools (e.g., Nozomi, Claroty, Fortinet, Palo Alto)
  • Support vulnerability management and patching strategies for ICS components
  • Collaborate with IT and engineering teams to implement secure remote access (e.g., jump servers, VPN, MFA)
  • Participate in incident response and forensic investigations in OT environments
  • Provide technical input for NIS2 compliance readiness and OT security documentation
  • Contribute to hardening of PLCs, SCADA, and DCS systems
  • Ensure secure lifecycle management of OT assets, including backups and system recovery testing


Required Qualifications

  • Minimum 5+ years experience in OT security or industrial network engineering
  • Deep understanding of ICS/SCADA environments, industrial protocols (Modbus, OPC UA, PROFINET, etc.)
  • Hands-on experience with industrial cybersecurity platforms (e.g., Nozomi, Claroty, Dragos)
  • Knowledge of NIS2, ISO 27001, ISO 62443 or similar frameworks
  • Strong experience with firewalls, segmentation (L2/L3), and network design
  • Familiarity with Windows/AD environments in production networks
  • Fluent in English; Dutch or French is a plus
  • Certifications such as GICSP, IEC 62443, CISSP, or SANS ICS are advantageous


Ideal Background

  • Experience in food production, logistics, pharmaceutical, chemicals, utilities, or manufacturing sectors
  • Strong communication skills to liaise with engineering, IT, and plant operations teams
  • Able to work autonomously and deliver within tight timelines in regulated environments
  • Available for occasional travel between industrial sites in Belgium

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