OT Specialist — Intermediate/Senior

📋 Description

• Design and maintain OT network architectures in accordance with the Purdue Model, including DMZ
• Implement and manage high-availability topologies — ring protocols (MRP, PRP, HSR), failover
• Lead network assessments, capacity planning, and performance optimisation across plant and field
• Own the deployment and lifecycle management of VSAT, radio, and cellular (4G/5G) communication
• Optimise link performance, QoS, and bandwidth allocation to ensure reliable SCADA and
• Manage vendor relationships and service agreements for satellite and telecommunications providers.

🎯 Requirements

• 5+ years of hands-on experience in OT infrastructure, industrial networking, or ICS environments
• Strong practical knowledge of the Purdue Model and high-availability industrial network design.
• Proven experience with VSAT, radio, and cellular communications in remote or offshore settings.
• Solid Hyper-V and/or ESXi administration skills in operational environments.
• Working knowledge of OT cybersecurity standards (IEC 62443, NIST 800-82).
• Degree or diploma in a relevant technical discipline, or equivalent demonstrated experience.