OT Analyst/Technician

Centrica; Windsor; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

Centrica is seeking an OT Analyst/Technician to support cybersecurity across industrial control systems, ensuring secure, compliant operations and robust incident response. You’ll collaborate with engineers, cybersecurity specialists and external partners to monitor OT environments and respond to incidents.

The role focuses on risk, compliance, asset and patch management, and continuous improvement of OT controls, using data-driven and automated approaches.

Qualifications

• Hands-on experience with OT/ICS in energy or large industrial environments.
• Knowledge of automation, controls, OT networks and security controls.
• Experience supporting OT cybersecurity activities (incident response, monitoring, patching, backups, secure remote access).
• Working knowledge of OT security frameworks and regulations (IEC 62443, NIS, ISO 27001).
• Ability to collaborate with engineers, vendors and cybersecurity teams to maintain secure and resilient OT operations.
• Degree in Cybersecurity, IT/Engineering or equivalent; OT security certifications preferred.
• Excellent collaboration and communication skills for technical and non-technical audiences.

Responsibilities

• Support OT cybersecurity incident response, including investigation, containment, and technical actions under CSIRT/GSOC guidance.
• Operate and monitor OT cybersecurity controls across Centrica sites, perform health checks and configuration validation.
• Contribute to OT risk, compliance and audit activities, including risk reviews and validation of remediation actions.
• Maintain OT asset, patch, backup and recovery records; validate third-party activities.
• Implement and support secure OT connectivity, including network configurations and vendor remote access.
• Maintain OT cybersecurity documentation and assist with tooling, resilience testing and training.

Skills

OT systems

Incident response

Security controls

Risk & compliance

Vendor collaboration

Communication

Team coordination

Education

Cybersecurity degree

IT/Engineering degree

OT security certifications

Job description

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.

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 Centricas new transformation, you have an opportunity to play your part - Our Operational Technology keeps energy moving safely and reliably — and this role plays a vital part in protecting it. As an OT Analyst/Technician, you’ll provide hands‑on support across our OT cybersecurity and resilience activities, ensuring that industrial control systems remain secure, compliant and operationally robust. You’ll work closely with engineers, cybersecurity specialists, and external partners to monitor OT environments, support incident response, maintain asset and patch records, and contribute to risk, compliance and audit activities. The role also supports the ongoing improvement of our OT controls, processes and tooling, making use of data‑driven and automated capabilities to streamline routine tasks and enhance the quality and speed of delivery. This is a technically focused role with real operational impact, offering the opportunity to build deep OT expertise while contributing directly to the safe, secure and continuous delivery of energy to millions.

Location

UK-based hybrid role, Occasional travel to site.

Day to day

• Support OT cybersecurity incident response, including investigation, evidence gathering, containment, remediation, and technical actions such as system isolation and patching, under CSIRT and GSOC guidance.
• Operate and monitor OT cybersecurity controls across Centrica Power sites, performing routine health checks, maintenance, and configuration validation in line with Security Operations processes.
• Contribute to OT risk, compliance, and audit activities, including risk reviews, penetration testing, regulatory evidence preparation, and validation of remediation actions against standards such as NIS and ISO 27001.
• Maintain accurate OT asset, patch, backup, and recovery records, validating third‑party activities and ensuring systems remain resilient, recoverable, and compliant with Centrica security standards.
• Implement and support secure OT connectivity, including network configurations and vendor remote access, monitoring sessions, escalating anomalies, and supporting vendor assessments.
• Maintain OT cybersecurity documentation and registers, support resilience testing and recovery drills, assist with tooling and process improvements, and contribute to OT security awareness and training activities.

What We Need From You

• Experience working hands‑on with, or closely alongside, Operational Technology and industrial control systems within energy or large industrial environments, with a good understanding of how OT operates.
• Practical knowledge of automation, controls, OT networks, protocols, and security controls.
• Experience supporting OT cybersecurity activities such as incident response, monitoring, patching, backups, and secure remote access.
• Working knowledge of OT security frameworks and regulations (e.g. IEC 62443, NIS, ISO 27001).
• Ability to work effectively with engineers, vendors, and cybersecurity teams to maintain secure and resilient OT operations.
• Degree in Cybersecurity, IT/Engineering (or equivalent experience); relevant OT security certifications preferred.
• Excellent collaboration and communication skills, enabling effective facilitation across operations, finance, compliance, architecture, and delivery teams for both technical and non-technical audiences.

AI / Digital Fluency Skills

• Demonstrates 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 escalating anomalies, and supporting vendor assessments. 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.Visit the link below to discover why we’re a great place to work and what being part of more means for you.

https://www.morethanacareer.energy/centrica

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. Help us, help you. We would love for you to share any information about yourself throughout our recruitment process so that we can better understand you and help shape your journey.