Principal Nuclear Security Engineer

KBR, Inc.; Glasgow; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

KBR is seeking a Principal Nuclear Security Engineer to support a major defence nuclear infrastructure programme. The role provides specialist engineering support for security-related assets within a highly regulated environment, developing governance and assurance across the asset lifecycle.

You will coach and share knowledge to strengthen engineering capability while collaborating with multidisciplinary teams.

Qualifications

• Experience in a high-hazard, highly regulated environment.
• Experience with engineering substantiation or design justification for nuclear structures, systems and components.
• Strong understanding of security engineering principles and ONR/IAEA guidance.
• Knowledge of nuclear safety cases and their relation to security.
• Experience developing management arrangements, engineering processes or technical procedures.
• Engineering degree or equivalent experience.

Responsibilities

• Provide specialist engineering support and assurance for security assets across their lifecycle, developing and reviewing technical justifications and evidence.
• Assess engineering information, provide technical advice and challenge, support design changes, inspection and testing.
• Collaborate across engineering, operations, maintenance and project teams to support design, commissioning and acceptance activities, and perform peer reviews.

Skills

High-hazard env

Nuclear security

Engineering governance

Technical advisory

Coaching transfer

CEng progress

Education

Engineering degree

Job description

Principal Nuclear Security Engineer

At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

KBR is looking for an experienced Principal Nuclear Security Engineer to support a major defence nuclear infrastructure programme.

In this senior position, you will provide specialist engineering support for security-related infrastructure and assets operating within a highly regulated environment. You will help develop and maintain the engineering evidence, governance and assurance needed to demonstrate that critical assets continue to meet their required performance throughout the full lifecycle.

Working alongside multidisciplinary engineering teams, projects, contractors and other key stakeholders, you will provide informed technical advice, constructive challenge and assurance. You will also play an important role in strengthening engineering capability through coaching, collaboration and knowledge transfer.

What You’ll Be Doing

You’ll provide specialist engineering support and assurance for security-related assets throughout their lifecycle, developing and reviewing engineering justifications, technical evidence and associated processes.

You’ll assess engineering information, provide technical advice and constructive challenge, and support design changes, modifications, inspection, maintenance and testing requirements.

Working collaboratively across engineering, operations, maintenance and project teams, you’ll also support design, commissioning and acceptance activities, undertake technical and peer reviews, identify emerging issues and help strengthen engineering capability through coaching and knowledge transfer.

What You’ll Bring

You will have:

• Engineering experience gained within a high-hazard, highly regulated environment.
• Experience of engineering substantiation or design justification for nuclear structures, systems and components.
• A strong understanding of security engineering principles and recognised good practice, including the ONR Security Assessment Principles, Technical Assessment Guides or relevant IAEA guidance.
• A working knowledge of nuclear safety cases and their relationship with security.
• Experience developing management arrangements, engineering processes or technical procedures.
• An engineering degree, or equivalent relevant experience.

Experience within defence nuclear programmes, security regulation or assessment, or a nuclear design authority environment would be particularly valuable. Chartered Engineer status, progress towards CEng, or Chartered Security Professional status would also be advantageous.

Security Requirements

Due to the nature of this position and the environment in which you will be working, you must be able to meet the requirements for Developed Vetting (DV) security clearance.

Location

The role is Hybrid where 2-3 days per week will be spent in on the Client site.

Belong, Connect and Grow at KBR

At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team’s philosophy and foster an environment where everyone can Belong, Connect and Grow. We Deliver – Together.

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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