OT Lead / Engineer in Maidenhead

Join us, be part of more. We're so much more than an energy company. We're a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn't rely on fossil fuels, whilst living our powerful commitment to igniting positive change in our communities. Here, you can find more purpose, more passion, and more potential. That's why working here is MoreThanACareer.

We do energy differently - we do it all. We make it, store it, move it, sell it, and mend it. As part of the new transformation, an opportunity to play your part - Operational Technology is the core of how we generate, store and deliver energy - and the OT Lead / Engineer plays a pivotal role in protecting that core. You'll safeguard the industrial systems that keep our sites running, leading OT incident response, strengthening cyber defences, and ensuring our control environments remain resilient, compliant and ready for tomorrow's challenges.

This is a hands-on, high-impact role where you'll drive security operations, influence strategic decisions, and shape the future of secure energy infrastructure across Centrica Power's portfolio, and you'll embrace opportunities to use automation and data-enabled tools to improve the efficiency and effectiveness of security operations.

Day to day:

• Monitor and manage OT cybersecurity incidents, working with CSIRT and GSOC to investigate events, assess impact, and coordinate containment and remediation actions.
• Oversee the day-to-day operation of OT cybersecurity controls, ensuring effective monitoring, patching, backups, recovery validation, and secure remote access across Power sites.
• Maintain OT risk and compliance activities, including risk assessments, control validation, asset inventory updates, and support for regulatory and internal assurance requirements.
• Plan and support testing activities such as penetration tests, resilience and failover testing, and security validation during commissioning and operational handover.
• Manage OT security changes across the asset lifecycle, including configuration baselines, obsolescence reviews, technology refresh planning, and change control.
• Support projects and suppliers by providing OT security input to designs, reviewing vendor solutions and contractual security requirements, and identifying continuous improvements to strengthen OT security and resilience.

What we need from you:

• Ability to analyse complex, often incomplete information and apply sound judgement to balance security risk, operational impact, and business priorities in time-sensitive situations.
• Confidence working with ambiguity, interpreting policies and standards, validating data and tool outputs, and making pragmatic, defensible decisions.
• Strong experience with OT systems and industrial control systems (SCADA, DCS, PLCs) within energy, power generation, or other critical infrastructure environments.
• Proven background in OT cybersecurity, including incident response, security monitoring, OT networking, and use of tools such as firewalls, NDR, and IDS/IPS.
• Solid understanding of OT cybersecurity frameworks, standards, and regulations (e.g. IEC 62443, NIS/NIS2, ISO 27001), and how they apply in a regulated energy environment.
• Strong stakeholder skills, with the ability to work effectively across engineering, cyber, operations, vendors, and wider business teams to deliver secure, practical outcomes.
• Bachelor's degree in Cybersecurity, ICT, IT, or a related field (or equivalent experience in OT, IT, or Cybersecurity).
• Professional certifications such as CISSP, GICSP, or equivalent (preferred).
• AI / Digital fluency skills demonstrating the safe and responsible use of AI tools, with clear knowledge of when AI use is appropriate and strong awareness of accuracy, bias and compliance.
• Bringing the ability to design and reuse prompt templates to support consistent, high-quality workflow outputs, and skilled in using AI to triage, classify and analyse information within Centrica policy guardrails.
• Strong ability to recognise higher-risk scenarios and escalate to governance or security as needed.
• Alongside this, showing proficiency in enterprise AI co-pilots, knowledge assistants and AI-enhanced productivity tools.

Why should you apply?

We're not a perfect place - but we're a people place. Our priority is supporting all of the different realities our people face. Life is about so much more than work. We get it. That's why we've designed our total rewards to give you the flexibility to choose what you need, when you need it, making sure that you and your family are supported not only financially, but physically and emotionally too.

If you're full of energy, fired up about sustainability, and ready to craft not only a better tomorrow, but a better you, then come and find your purpose in a team where your voice matters, your growth is non-negotiable, and your ambitions are our priority.