About the role

  • OT Engineer maintaining and improving industrial control systems for nuclear fuel manufacturing. Supporting design and optimization while ensuring compliance with safety regulations.

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.
  • 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.
  • 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.

Requirements

  • 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 (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.

Benefits

  • 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.

Job title

OT Engineer

Job type

Experience level

Mid levelSenior

Salary

Not specified

Degree requirement

Bachelor's Degree

Tech skills

Location requirements

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