OT Security Engineering Manager

About us

At National Grid, our commitment to a cleaner, greener energy future is powered by the dedication and ingenuity of our people. Join our team as aOT Security Engineering Managerand be a part of something bigger-where your unique skills and passions can make a real difference. Together, we are superpowered.

National Grid is hiring a OT Security Engineering Manager on a permanent basis. The this role is based in our Warwick office - We offer a hybrid working model.

Job Purpose

As OT Engineering Lead, you'll be responsible for delivering and evolving the engineering capabilities that underpin our operational technology (OT) security services. This includes leading the deployment and assurance of OT security tooling, supporting substation and lab-based testing, and managing key forums and service catalogues. You'll play a pivotal role in ensuring our OT environments are secure, resilient, and aligned with strategic objectives.

What you'll do

• Define and manage IDS contract requirements, use case deployment, and iterative functional testing. Lead maturity model implementation, contract renewal, and incident response support. Contribute to tender events.
• Track, manage and have a detailed hands-on understanding of security tooling across OT environments, ensuring visibility of deployment status and operational effectiveness using metrics.
• Manage interfaces with numerous stakeholders including procurement, planners and operational field force to ensure successful implementation of security technologies. Support identification of risks provide monthly reporting on project assurance status and key risks/gaps
• Define and maintain requirements for OT security tools (e.g. IDS) based on architectural patterns. Lead evaluation and selection processes.
• Support testing and assurance activities for new substations. Lead lab-based validation of new capabilities and patterns.
• Manage team delivery tracking (e.g. research catalogue, Kanban). Operate and evolve the OT Security Engineering service catalogue. Lead the OT Governance & Architecture Forum.
• Work closely with engineering managers and cross-functional teams to align on objectives, share insights, and drive continuous improvement.

About you

• Proven experience in OT security engineering, infrastructure delivery, or related fields.
• Strong understanding of IDS technologies, host security tooling, and OT architecture.
• Familiarity with substation environments and lab-based testing.
• Experience managing service catalogues and technical forums.
• Excellent communication, documentation, and stakeholder engagement skills.
• Ability to lead cross-functional initiatives and manage complex technical programmes.
• A keen eye for detail, with a strong focus on tracking metrics to ensure high-quality service delivery and routine infrastructure management.
• Comfortable maintaining and reporting on metrics related to OT security capabilities supported by team resources.

What you'll get

A competitive salary between £63,000 - £75,000 - dependent on capability

As well as your base salary, you will receive a bonus of up to 30% of your salary for stretch performance and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to a number of flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.

More Information

The closing date for this vacancy is 10th July. However, we encourage candidates to submit their applications as early as possible and not to wait until the published closing date. National Grid’s recruitment periods can and may vary. We reserve the right to remove this advert or close it to further applications at any point during the recruitment process.

DE & I statement

At National Grid, we work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.
Our goal is to drive, develop and operate our business in a way that results in a more inclusive culture. All employment is decided on the basis of qualifications, the innovation from diverse teams & perspectives and business need. We are committed to building a workforce so we can represent the communities we serve and have a working environment in which each individual feels valued, respected, fairly treated, and able to reach their full potential.

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