Fire Engineer

Nuclear Permanent /Bristol United Kingdom
28/08/26

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Be part of one of the top three largest independent nuclear engineering companies globally. At Assystem, you’ll contribute to groundbreaking projects that push the boundaries of innovation and engineering excellence. Join a community committed to driving forward the future of energy.

Job Description We are seeking a Fire Engineer to join a specialist Nuclear Safety & Environment team supporting two of the UK’s largest nuclear new build projects.

This role offers the opportunity to contribute to the fire safety design and assessment of nuclear facilities, ensuring compliance with nuclear safety requirements and UK fire regulations.

Working within a multidisciplinary environment, you will collaborate closely with safety, systems, civil, building design and plant layout teams to develop and maintain fire protection strategies across key nuclear facilities.

Key Responsibilities Conduct fire safety studies and assessments for Nuclear Island buildings.

Analyse combustible materials and evaluate fire risks within designated plant areas.

Perform fire modelling and temperature evolution calculations using specialist software (e.g. MAGIC) to assess fire consequences and propagation risks.

Evaluate the potential impact of fire on safety-critical systems and identify common cause failure risks.

Provide technical fire engineering support to systems, layout and design teams.

Support design modifications and assess their impact on existing fire studies and safety cases.

Undertake regulatory assessments relating to fire and life safety requirements.

Develop and recommend fire prevention and protection solutions.

Prepare and deliver technical reports and documentation in line with project quality standards and programme requirements.

Participate in technical committees, task forces and design reviews, representing the Fire Engineering and Nuclear Safety disciplines as required.

My profileA degree in Fire Engineering, Mechanical Engineering, Nuclear Engineering or a related discipline.

Experience in fire safety engineering, risk assessment or safety case development within a highly regulated industry.

Knowledge of ETC-F (EPR Technical Code for Fire) would be appreciated.

Experience and knowledge of UK Fire Regulations including BS9999.Ability to propose fire protection and detection solutions.

Strong analytical and problem-solving skills, with the ability to assess complex technical issues.

Experience working within multidisciplinary engineering teams.

Excellent communication and stakeholder management skills.

Experience with in the nuclear sector or other safety-critical industries would be advantageous.

Additional information

Join us at Assystem and be part of a global team delivering some of the most exciting and complex engineering projects in the world. This is your chance to shape the UK’s energy future while developing your expertise in a unique environment.

Benefits include:

Hybrid Working Opportunity Flexible working hours️ Pension scheme (8% company contribution / 4% personal contribution)️ 25 days’ paid annual leave + bank holidays + option to buy or sell days Professional fees reimbursed

Employee referral scheme

Competitive Sick Pay – Support when you need it Income Protection & 3x Salary Death-in-Service Cover Free Digital Gym Access – Expert-led fitness classes
24/7 Employee Support Line – Mental health, financial…