Principal Safety Case Engineer

Mott Mac Donald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance – we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.

Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, you're surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee‑owned business, we benefit our clients, our communities, and each other, investing in creating the right space for everyone to feel empowered, included, and valued.

Whatever your ambition, Mott Mac Donald is where people come to be brilliant.

The Energy unit delivers services to clients globally across several sectors including hydropower, nuclear, waste, renewable generation and transmission & distribution networks. Together we provide integrated engineering and project management services across the project lifecycle – from concept and design to construction and operations, to decommissioning or repowering and life extension. Together with our clients, we’re helping to deliver the energy transition globally.

We – the Energy Unit, specifically the Nuclear, Defence and Civil division – are looking to recruit a Principal Safety Case Engineer to join our team. The role will cover a number of areas including nuclear power generation, the naval nuclear programme and decommissioning. This is an excellent opportunity to join a growing team with plenty of opportunities for career progression and the chance to make an impact on the development of the Energy landscape.

For this role you will be expected to demonstrate knowledge/experience within one or more of the following areas:

• Safety Case Production (e.g. SJP, PCSR, PCmSR, PRS)
• Modification/ Design Change Submissions (LC/AC 22)
• Decommissioning
• Functional Safety Assessment
• Regulatory Interface
• ALARP Assessment
• Safety & Risk Assessment
• Deterministic Safety Assessment
• Probabilistic Safety Assessment
• Nuclear Safety Legislation, Regulation and Policy
• Engineering Substantiation
• HAZOP and other identification studies
• HAZAN
• Criticality
• Nuclear Fire

• Degree qualified in a Science, Technology or Engineering discipline
• Experience in the nuclear or defence industries (although applicants from other high‑hazard industries will be considered)
• Chartered Engineer or working towards
• Ability to demonstrate successful delivery of nuclear safety deliverables and strategy on complex projects
• Willing to develop and mentor more junior members of staff

If you meet 80% or more of what we’re looking for, please still apply. We understand not everyone will meet all the requirements, but you might have skills we didn’t know we need.

We put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they can contribute.

We want you to perform your best at every stage in the recruitment process. If you are disabled or need any support to enable you to apply or attend an interview, please contact us at reaso and we will talk to you about how we can support you.

Happy to talk Flexible Working and how we can support your responsibilities beyond the workplace.

We offer a range of benefits including:

• Private medical insurance for all UK colleagues.
• Health cash plan to support you with everyday health costs and treatments.
• Access to Peppy, providing free support from menopause experts for all UK colleagues.
• A variety of wellbeing support is available through our…