OT Security Engineer

Rullion Managed Services; North Warwickshire; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A global energy services company is seeking an OT Security Engineer to support the Digital Products and Solutions team. The role involves hands-on cybersecurity implementation and collaboration with various stakeholders. Candidates should have experience in control systems engineering and a strong understanding of cybersecurity in operational technology (OT) environments. This hybrid role is based in Warwick, requiring occasional travel. Competitive PAYE rate is offered.

Qualifications

• Experience as a control systems engineer or similar role.
• Hands-on experience with cybersecurity implementation in OT environments.
• Familiarity with industrial cyber regulations, especially IEC 62443.

Responsibilities

• Report to the Lead Execution Manager for Industrial Cyber Security.
• Assist in the delivery of cybersecurity projects.
• Provide customer cyber support and act as a point of contact.

Skills

Control systems engineering

Cybersecurity implementation in OT environments

Knowledge of IEC 62443 regulations

Attention to detail

Remote connection solutions in industry

Technical documentation management

GICSP certification or similar

Experience with virtualization platforms

Interpersonal communication skills

Tools

VMware

Job description

Rullion are looking to recruit for the following role for one of our global leading Energy clients.

OT Security Engineer

Location - Warwick- Hybrid - 1 day per week - Commute to Lincoln once a month

ASAP Start

6-12 Months then rolling contract (long term work)

Inside IR35

PAYE £(Apply online only) Per day

Umbrella £(Apply online only) Per day

Position Main Responsibilities:

• Report to the Lead Execution Manager for Industrial Cyber Security.
• Hands‑on support 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.
• Hands‑on work in OT environments, including configuring networks, remote access 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 ICs (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 Warwick with monthly visits.
• Travel to customer sites globally (approx. 10% of the time).

Typical Day Overview:

A typical day may involve answering technical queries from product lines, configuring network components, listing and documenting cybersecurity solutions, and preparing or delivering training sessions. You'll also collaborate with stakeholders, review technical documentation, and support ongoing cyber execution projects.

Relevant Skills and Experience:

• Experience as a control systems engineer or similar role, with knowledge of industrial applications in energy or oil & gas.
• Hands‑on experience with cybersecurity implementation in OT environments.
• Familiarity with industrial cyber regulations, especially IEC 62443.
• Strong attention to detail and high‑quality deliverables.
• Knowledge of remote connection solutions used in industry.
• Proven ability to write and manage technical documentation.
• Preferred certifications: GICSP or similar.
• Experience with virtualization platforms (e.g., VMware).
• Excellent interpersonal, verbal, and written communication skills for client‑facing interactions.

If available please submit CV and a member of the team will be in touch

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