Senior OT Infrastructure Engineer

We are supporting a large industrial manufacturing organization in the Wallonia region in the search for a Senior OT Infrastructure Engineer.

This role requires a hands-on senior profile (minimum 5+ years of relevant experience) with strong expertise in Operational Technology (OT), VMware virtualization, and Windows environments. The consultant will operate in a complex production environment where IT and OT systems interact closely.

• Support and maintain OT infrastructure within an industrial/manufacturing environment
  

• Manage and optimize Windows Server environments (configuration, performance, lifecycle management)
  

• Administer and support VMware virtualized infrastructure (ESXi / vSphere)
  

• Ensure stability, performance, and security of production-related systems
  

• Contribute to network segmentation and firewall-related initiatives within OT environments
  

• Collaborate with automation, engineering, and IT teams
  

• Participate in troubleshooting, root cause analysis, and continuous improvement initiatives
  

• Minimum 5+ years of experience in infrastructure roles within industrial or OT environments
  

• Strong expertise in:
  

  • Operational Technology (OT) environments
    

  • VMware (ESXi, vSphere)
    

  • Microsoft Windows Server ecosystems
    

• Good understanding of networking principles, firewalling, and segmentation
  

• Experience working in complex manufacturing or production environments
  

• Strong analytical and diagnostic skills
  

• Structured, proactive, and able to work autonomously
  

• Comfortable collaborating in cross-functional teams
  

• French: Fluent (mandatory)
  

• English: Fluent (mandatory, written and spoken)