At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships.

Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

About the Opportunity:

The Energy and Environment International Sector is a growing sector and to meet this we are looking to recruit for a Safety Engineers with extensive experience in the development of safety justification to join our Defence & Security business. Candidates with similar safety case experience within high hazard industries and, or significant nuclear defence industry experience will be considered, where this compliments the existing team.  
The Defence & Security business provides an exciting mixture of consultancy, design and engineering support, along with delivery of challenging Defence projects, to major clients in the UK at a variety of Sites across the nuclear and defence industries. Taking a lead role in the development of the appropriate and proportionate safety case including Naval Nuclear, Civil Nuclear, Marine Infrastructure, OME regulated by DNSR, ONR and HSE. This supports the full project lifecycle from Concept, through design to decommissioning. 

Essential skills and experience:

• Preparing, implementing, and delivering Safety Case documentation for nuclear operations and plant areas, ensuring standards of safety, cost, quality, and schedule are met 

• Presenting safety case documents to safety committees, regulators, and licensees on behalf of senior management, ensuring compliance with legislative, regulatory, and company policies related to nuclear safety 

• Maintaining safety case systems, and developing procedures and processes for management and review of safety standards 

• Conducting short- and long-term reviews of safety cases, advising on nuclear safety performance, and developing dashboards for performance tracking 

• Capable of team leadership, project management, and continuous improvement initiatives in a regulated nuclear environment 

Desirable skills and experience

• Leading improvement initiatives, integrating lessons learned from internal and external sources, events, and best practices 

• Leading the development and assurance of nuclear safety across complex naval infrastructure, including submarines and weapons programmes 

• Providing expert advice on probabilistic safety assessments (PSA), design safety, and operational safety cases.

• Overseeing safety case implementation, auditing for compliance, and supporting risk management activities across fleets and facilities 

Here’s What You’ll Need:

• A STEM background is essential, Degree qualified, Chartered (desirable)

• Completion of specific nuclear safety or Safety Case Manager (SCM) workbooks and able to obtain a security clearance.

• Strong understanding of safety case principles, methodologies, and regulatory frameworks, including DBA (Design Basis Accident) and PSA approaches .

• Experience in operating within validated risk assessment arrangements and managing nuclear operation.

• Production of safety documentation, including Periodic Safety Review (PSR) outputs, Facility Safety Cases (FSC), and Post-Accident Condition Safety Reports (PACSR)

• Conducting periodic safety case reviews, implementing safety processes for operational changes, and integrating safety strategies into procedures and audits.

• Experience leading safety case development for civil or naval nuclear installations is highly valued.

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration. We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work. When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.

We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact [email protected].