Salary: £91,000 - 97,500 per year Requirements: 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. 10 years of experience in IT/OT environments. Experience integrating IT networks with OT systems. Responsibilities: 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 at sites. Oversee hardware procurement processes. Support shop floor asset connectivity to the network. Perform malware scanning as per SOP/policies and work with Customers 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. Technologies: Cloud Cisco Ethernet Firewall Hardware Support LAN Network Security SMB TCP/IP 3D AWS IoT More: We are seeking an IT/OT Onsite Network Engineer to support our Customers Digital Technology Leader in delivering high-priority IT/OT security projects. This role is based onsite at Shawfarm Industrial Estate in Prestwick, United Kingdom. We value collaboration and innovation, working closely with various teams to enhance network security and compliance. Join us in a dynamic environment where youll engage in diverse responsibilities and thrive in developing your expertise in IT/OT systems. last updated 4 week of 2026