IT-OT Onsite Network Engineer

Role /

Job Title:

IT/OT Onsite Network Engineer

Work Location:

Shawfarm Industrial Estate, Monument Cres, Prestwick KA9 2RX
, United Kingdom (Onsite)

The Role:

IT/OT Onsite Network Engineer Support the Customer's Digital Technology Leader in delivering IT/OT security high-priority projects. Your Responsibilities (Up to 10 avoid repetition) Coordinate with facility & maintenance, EHS, quality, and operations teams on Secure Shop Connection projects. Provide Internal Audit, External Audit, and Integrations Support. Conduct OT/IT asset discovery, record management, and ongoing maintenance; liaise with third-party suppliers for asset inventory data.

Build and maintain documentation to demonstrate compliance with IT/OT controls; identify, document, and manage IDF/MDF infrastructure rsee hardware procurement processes. Support shop floor asset connectivity to the network. Perform malware scanning as per SOP/policies and work with Customer's Cybersecurity to remediate infections on OT devices. Patch management for vendor-provided PCs, vulnerabilities, and incident management. Install and manage Nozomi network taps.

Configure and deploy IT/OT network infrastructure (e.g., switch installations) in alignment with Customer-approved design standards. Implement removable media controls, particularly for third-party suppliers. Develop recovery and backup solutions with suppliers of critical OT. Schedule and execute annual OT/IT device scanning. Your Profile Essential Skills / Knowledge / Experience (Up to 10 avoid repetition) Network firewall rule configuration, network security configuration, and micro-segmentation using VLAN, switches, and network taps.

Familiarity with secure protocols (OPC-UA, Modbus TCP/IP, Ethernet/IP, SMB). Proficiency in configuring firewalls (Checkpoint), SD WAN, switches, and routers (e.g., Cisco). Network design and implementation, including LAN/WAN, VLANs, and routing protocols. Hands-on experience in deploying and managing OT business enablement tools (Remote Access, File Transfer, Monitoring, Back-ups). CCNA/CCNP (Cisco Certified Network Associate/Professional). CompTIA Network or equivalent. OT Certifications (CCNA/CCNP/OT SANS) and Cloud experience recommended.

Desirable Skills / Knowledge / Experience 10 years of experience in IT/OT environments. Experience integrating IT networks with OT systems. Working knowledge of OT assets HMIs, PLCs, sensors, inspection machines (CMM, CNCs), 3D printers, etc. Experience deploying and managing edge cases covering AWS Storage Gateway, Historian, IoT, and apps like Ops Vision.