OT Engineer

Westinghouse Electric Company LLC; Preston; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Pension plan

Life insurance

Employee Assistance Program

Job summary

Westinghouse Electric Company LLC is seeking an Operational Technology (OT) Engineer at the Springfields site to maintain and improve OT/ICS across production facilities. You will design, implement, and support PLC, DCS, HMI, and SCADA systems while ensuring cyber security and regulatory compliance with ONR and NIS standards.

The role blends engineering and cyber security, requiring collaboration with IT, security, and operations teams.

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 (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).
• Familiarity with IEC 62443, OG86, NCSC CAF, and ISO 27001 frameworks.
• Experience with OT monitoring tools (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.

Responsibilities

• 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.
• 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.
• 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.
• Ensure OT systems and modifications meet ONR SyAPs and safety case requirements.
• Support audits, inspections, and technical assurance activities for internal and regulatory stakeholders.
• Maintain 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 engineering.
• Foster collaboration between engineering, IT, operations, and security teams.

Skills

Industrial control systems

PLC/DCS/HMI/SCADA

OT security

Regulated environment

Functional safety

Cyber security practices

Education

HNC/HND or degree in Electrical/Electronic Engineering, Control Systems, Automation, or related discipline

Tools

Siemens

ABB

Honeywell

Rockwell

Emerson

Job description

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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 anOperational Technology (OT) Engineerat 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 Office for Nuclear Regulation (ONR)and theNIS Regulations.

You will report toOT 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.


• ApplyIEC 62443,OG86, andNCSC CAFprinciples 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 theONR 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 inElectrical/Electronic Engineering, Control Systems, Automation, or a related discipline.


• Experience maintaining or supportingindustrial control systemsin 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 offunctional safety(IEC 61508/61511) and safe system operation.Experience working in aregulated or safety-critical environment(e.g. nuclear, energy, defence, or chemical industries).

Qualifications:

• Familiarity withIEC 62443,OG86,NCSC CAF, andISO 27001frameworks.


• 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 asTÜV Functional Safety Engineer,GICSP,CompTIA Security+, orISA/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:
  
  
  
  • Peer-to-peer recognition program.
  
  
  • 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.

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

Employment opportunities may require access to information which is subject to the export control regulations of the United States. Hiring decisions for such positions are required by law to be made in compliance with these regulations. Applicants for employment opportunities in other countries must be able to meet the comparable export control requirements of that country and of the United States.