Operational Technology Cyber Security Engineer in London

Join to apply for the Operational Technology Cyber Security Engineer (Defence) role at NCC – Innovating for Industry.

Location: Bristol based with hybrid working (3-4 days per week in office).

Salary: £45,084 to £63,750 per annum, experience dependent, plus 12.5% employer pension, private medical insurance and additional benefits package.

Government Security Clearance: All employment is subject to satisfactory references and a level of government security clearance.

Closing Date: 4th January 2026.

The NCC is a not‐for‐profit organisation supporting manufacturing innovation across 16 sectors in the UK. You will support defence and non‐defence related work in this role.

We are looking for an OT Cyber Security Specialist to join our expanding team as a new member of the IT department providing guidance and hands‐on Cyber Security support. You will work within a small, skilled and friendly team who work closely together to help protect NCC from cyber security threats.

Primarily working on IT projects and programmes across the IT Defence Portfolio, you will take a consultative and hands‐on role in the design, implementation, and ongoing maintenance of security controls across both hybrid and on‐premises IT environments.

• Develop, deliver, and maintain secure standards and practices tailored to the unique requirements of the OT environment.
• Improve visibility of assets and advanced incident detection and develop the means to contain and respond to security threats.
• Conduct cyber and security incident response.
• Maintain and develop cyber security expertise.
• Maintain the organisation's situational awareness.
• Manage and maintain security tools and sensors.
• Deliver and maintain secure standards and practices.
• Drive security improvements across the environment.
• Guide and support cyber security across the business.

• Career background as a Cyber Security Engineer.
• Specialist knowledge of protecting Operational Technology.
• Willingness and ability to apply for a high level of government security clearance.
• The ability to use, manage and maintain various cyber security tooling.
• Strong understanding of important security concepts and security best practices.
• Strong experience analysing events, incidents and threats.
• Very strong written communication skills, with experience of documenting policies, procedures, security requirements.
• Strong Technical Knowledge of Microsoft‐Based Environments across both on‐prem and cloud environments.
• Understanding of network security principles, including firewalls, segmentation, and secure remote access.
• Familiarity with common regulatory and compliance frameworks (e.g. NIST, CIS Controls, ISO 27001, Cyber Essentials Plus).

• Flexible working patterns as standard.
• Annual salary reviews.
• Company paid private medical insurance.
• Up to 12.5% employer pension contribution.
• Great people.
• Honorary staff status at the University of Bristol.

With a genuine focus on wellbeing, EDI and learning and development this is a chance to build your career in a thriving R&D facility with a bright future.

We help manufacturers take on bigger challenges – whether that’s building cleaner aircraft, scaling up offshore wind, or strengthening the UK’s supply chains. We’re here to deliver practical outcomes, not prototypes that sit on shelves.

This role isn’t just internal support – it’s part of how we deliver nationally important work. If we do our job right, the UK’s manufacturers can do theirs better.