Radiation Protection Adviser

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. 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 We are looking for an experienced RPA and operational RP practitioner to become part of a multi-disciplined team of Engineers, Designers and Safety Case authors. The team are all working together to design a new facility. Your role will require regular interaction with design teams, subcontractors and process engineers, providing advice on Radiological Protection and Operational Health physics requirements that the design must accommodate to function effectively. The design must meet and where possible exceed regulatory requirements, it will accommodate Best Industry Practice and utilise Best Available Techniques to produce a design that can meet future production requirements with an operational risk to workers and the environment that is demonstrably ALARP. Opportunities will exist to challenge historical practices, introducing efficiencies and technically underpinned design improvements that further reduce radiological risk. The flexible structure of the project will allow a successful candidate to influence strategic decisions at both the project and client level through ongoing interactions with both appointed RPAs and the Client RPA body. If you are a Professionally certified RP practitioner with a wide range of nuclear industry experience and a good knowledge of design and new build processes and practices, this is an opportunity for you to make a significant impact to a complex facility design. Your day to day work and responsibilities will require you to manage your own time and priorities in a way which best serves the project and the client. Here’s What You’ll Need An Honours degree in a Science or Engineering discipline (or equivalent) Significant experience as an RPA operating within the UK nuclear Industry A current or pending RPA 2000 certification An SRP membership and ideally a CRadP Certification Experience in SC production/ techniques is highly desirable Operational HP experience is highly desirable. A successful candidate must possess an SC clearance and be willing and capable of gaining a DV clearance. They will possess excellent communication skills and have a good working knowledge of relevant regulations and guidance such as IRR17 and its ACoP, EPR16, ONR SAPs and their Technical Assessment Guides (TAG). They will have a good understanding nucleonic instrumentation and their functional capabilities and be able to calculate Derived Working Levels (DWL) and Derived Air Concentrations (DAC) from first principles. They will need this knowledge and experience to run and support various working groups to develop the radiological Design Basis for chosen instrument operations and measurements in support of the facilities Active Commissioning. 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 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