Salary: £75,000 - 75,000 per year Requirements: Experience securing industrial / OT environments Strong networking knowledge (EtherNet/IP, TCP/IP) Hands-on experience with SCADA, PLCs, segmentation & firewalls Responsibilities: Design and implement secure OT / ICS networks Harden PLCs, SCADA, and HMI systems Deploy segmentation, firewalls & intrusion detection Lead testing, integration & FAT Own delivery from design through to commissioning Technologies: Ethernet Security TCP/IP More: We are looking for an OT Security Engineer to join our team in Warrington on a permanent basis. This role is part of a major, safety-critical industrial programme where preserving system integrity is essential and downtime is not an option. We offer a competitive salary between 65K - 75K, and you will have the opportunity to work on critical infrastructure where your impact is visible. Youll collaborate closely with automation and project teams, ensuring that you can see the results of your efforts through end-to-end solutions. last updated 17 week of 2026