OT Security Engineer

Rullion is recruiting for a role with one of our global leading Energy clients.

Location:

Warwick – Hybrid (1 day per week in Warwick, commute to Lincoln once a month). International travel may be required.

Start: ASAP.

Contract:

6‑12 months then rolling (long‑term). Inside IR35. Compensation: PAYE £473 per day PAYE - £640 Per day Umbrella.

Hands‑on role, not just a consultant or IT position.

• Report to the OT Security Operations Lead.
• Contribute to the Digital Products and Solutions team in achieving goals and setting cyber security strategy.
• Assist in the delivery of cybersecurity projects by validating existing technical documentation.
• Lead deployment activities in OT environments, including configuring networks, remote access solutions, anti‑malware, backup solutions and virtualization platforms.
• Provide customer cyber support and act as a point of contact for execution projects.
• Answer technical questions from Product Lines, including troubleshooting and solution listing.
• Write and perform training sessions for internal teams and customers.
• Support key business stakeholders in adopting new technologies.
• Develop and maintain technical partnerships with internal and external stakeholders or suppliers.
• Liaise with the internal IC S (Industrial Cyber Security) group on compliance and best practices.
• Support Cyber execution training and troubleshooting for Product Competence Centres.
• Maintain the cyber security lab in Warwickshire with monthly visits.
• Travel to customer sites globally (approx. 10% of the time).

• Responding to cyber technical queries from sales teams or engineering teams.
• Configuring network devices or security solutions.
• Creating user guides for engineering teams to deploy cybersecurity solutions.
• Preparing or delivering training sessions.
• Collaborating with stakeholders to review technical documentation.
• Supporting engineers during project execution.

• Hands‑on competence as a control systems engineer or network engineer, with knowledge of industrial applications preferably in energy or oil & gas.
• Hands‑on competence with cybersecurity implementation in OT environments.
• Actual engineering hands‑on competence of configuring & deploying security solutions.
• Hands‑on competence with backup solutions and anti‑malware solutions.
• Good practical knowledge of industrial cyber regulations, especially IEC 62443.
• Strong attention to detail and high‑quality deliverables.
• Hands‑on competence of remote connection solutions used in industry.
• Hands‑on competence configuring network switches and firewalls.
• Proven ability to write and manage technical documentation.
• Preferred certifications: GICSP or similar.
• Hands‑on competence with virtualization platforms (e.g., VMware, Proxmox).
• Excellent interpersonal, verbal, and written communication skills for client‑facing interactions.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.