Operational Technology Engineer

Westinghouse Electric Company; Preston; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Life insurance

Pension plan

Employee Assistance Program

Job summary

Westinghouse Electric Company is hiring an Operational Technology Engineer to maintain and improve OT and industrial control systems across Springfields Fuels Ltd. You will work at the intersection of engineering and cyber security to ensure safe, secure operation and compliance with ONR and NIS regulations.

Hybrid working is available. You will collaborate with the OT Systems Lead / Engineering Manager and cross‑functional teams to design, test, and implement system changes, including patching

Qualifications

• HNC/HND or degree in Electrical/Electronic Engineering, Control Systems, Automation, or a related discipline.
• Experience maintaining or supporting industrial control systems in a manufacturing or critical infrastructure environment.
• Working knowledge of PLC/DCS/HMI/SCADA systems (Siemens, ABB, Honeywell, Rockwell, Emerson) and industrial protocols (Modbus, OPC, Profibus, DNP3, Ethernet/IP).
• OT network architectures, segmentation, and security controls.
• Understanding of functional safety (IEC 61508/61511) and safety-critical environments.

Responsibilities

• Maintain operational control systems (PLCs, DCS, HMIs, SCADA) across production facilities.
• Resolve faults to ensure reliability and uptime.
• Perform preventive maintenance and upgrades to improve performance.
• Collaborate with vendors for technical support and lifecycle management.
• Contribute to design, documentation, testing, and change control of OT systems.
• Support secure architectures and cyber security controls in OT.
• Assist with patch management, access control, and backups for OT assets.
• Support audits and regulatory compliance activities.

Skills

PLC/DCS/HMI/SCADA

OT security

Industrial networks

Cyber security coordination

System integration

Education

Engineering degree or HNC/HND in Electrical/Electronic/Automation

Tools

Nozomi

Claroty

Dragos

Job description

Welcome to the future of nuclear energy

where Westinghouse Electric Company is leading the field with expertise and innovation to shape the power of tomorrow.

At Westinghouse, innovation is in our DNA. We are creative. We think differently. We reimagine the possible across the nuclear industry every day.

As an Operational Technology (OT) Engineer at Springfields Fuels Ltd, you will help maintain and improve the industrial control systems (ICS) that underpin our nuclear fuel manufacturing operations.

Working at the intersection of engineering and cyber security, you will support, designing, and enhancing PLC, DCS, HMI, and SCADA systems across the site. Your work will ensure that these systems operate safely, securely, and in compliance with regulatory standards set by the Office for Nuclear Regulation (ONR) and the NIS Regulations.

You will report to OT Systems Lead / Engineering Manager. Hybrid working available.

Key Responsibilities

Control System Maintenance and Support

• Maintain operational control systems (PLCs, DCS, HMIs, and SCADA) across the site's production facilities.
• Resolve system faults to ensure reliable, operation.
• Conduct preventive maintenance and implement system upgrades to improve performance and reliability.
• Collaborate with vendors, integrators, and suppliers for hardware/software support and lifecycle management.

System Design, Integration & Change Control

• Contribute to the design, development, and modification of OT systems following site engineering and safety standards.
• Maintain accurate documentation, including system drawings, configuration records, and change logs.
• Participate in system commissioning, testing, and validation.
• Ensure changes follow approved configuration management and cyber security processes.

Cyber Security & System Hardening

• Collaborate with the Cyber Security team to implement secure architectures and technical controls within the OT environment.
• Apply IEC 62443, OG86, and NCSC CAF principles to maintain compliance and resilience.
• Support activities such as patch management, access control, and system backups for OT assets.
• Support incident response and recovery for OT-related cyber or operational events.

Regulatory Compliance & Safety

• Ensure OT systems and modifications meet the requirements of the ONR Security Assessment Principles (SyAPs) and safety cases.
• Support audits, inspections, and technical assurance activities for both internal and regulatory stakeholders.
• Maintain accurate asset inventories and documentation to support ONR and NIS compliance obligations.
• Contribute to digitalisation and automation initiatives across the Springfields site.
• Identify and deliver opportunities to enhance system performance, reliability, and security.
• Support training and knowledge-sharing with colleagues and apprentices within the engineering function.
• Foster collaboration between engineering, IT, operations, and security teams.

Essential Qualifications And Experience

• HNC/HND or degree in Electrical/Electronic Engineering, Control Systems, Automation, or a related discipline.
• Experience maintaining or supporting industrial control systems in a manufacturing or critical infrastructure environment.
• Working knowledge of:
• PLC/DCS/HMI/SCADA systems (e.g. Siemens, ABB, Honeywell, Rockwell, Emerson).
• Industrial communication protocols (e.g. Modbus, OPC, Profibus, DNP3, Ethernet/IP).
• OT network architectures, segmentation, and security controls.
• Understanding of functional safety (IEC 61508/61511) and safe system operation.Experience working in a regulated or safety-critical environment (e.g. nuclear, energy, defence, or chemical industries).

Qualifications:

• Familiarity with IEC 62443, OG86, NCSC CAF, and ISO 27001 frameworks.
• Experience with OT monitoring tools (e.g. Nozomi, Claroty, Dragos) for visibility and asset management.
• Knowledge of change management, system lifecycle, and configuration control processes.
• Certifications such as TÜV Functional Safety Engineer, GICSP, CompTIA Security+, or ISA/IEC 62443 Cybersecurity Specialist.
• Security clearance (SC/DV) or ability to obtain.

Why Westinghouse?

We know that to put forth your best effort, you need us to challenge you and enjoy what you do in an environment that we support and respect. We aim to maintain this balance by offering our employees the amenities, benefits and training they need to reach personal and professional goals.

Below is an example of what employees in the UK can expect:

• Attractive remuneration
• Great benefits for your convenience and safety:
• Life insurance
• Pension plan
• Employee Assistance Program: confidential counseling and resources for employees, eligible dependents, and household members
• Learning and development opportunities.
• We encourage our employees to participate in community service events and other team-building activities to strengthen their bonds and inspire each other.

You can learn more about Westinghouse by visiting http://www.westinghousenuclear.com .

Westinghouse is an Equal Opportunity Employer including Veterans and Individuals with Disabilities.

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