Amentum is a global leader in advanced engineering and technology solutions, tackling some of the world's most complex challenges. Our business is growing and we’re looking for talented and passionate people to join our team, whether you’re just starting out in your career or you’re an experienced professional. We provide the front-end design and engineering capability across the Programme and Project Partners (PPP) portfolio. Being part of the PPP Team offers a unique opportunity to drive change and innovation in engineering, safety, and delivery solutions in one of the most complex industrial sites in the UK if not the world. The role of the PPP is to help to deliver a 20-year pipeline of major infrastructure projects as quickly and safely as possible, creating new facilities that allow Sellafield to treat, manage and store waste safely for decades to come. We are now recruiting for Civil & Structural Engineers to work on a number of projects, responsibilities will include: * Production of calculation packages, production of CS&A documents and input into multi-discipline documents (Reports, calculations, BoD, PFS etc.) * Structural substantiation of building elements (change of loading / area usage) e.g concrete / steel structures / pipebridges etc. * Development of optimised, balanced, and practical design solutions balancing aspects of safety and environmental performance, operational effectiveness and constructability * Ensure that the design meets all functional, safety and environmental requirements and is integrated with other design disciplines and preserves the design intent. * Stakeholder liaison / design team engagement / meeting attendance. * Production of CDM Risk Assessments * Engage with the CS&A Responsible Engineer and collaborate with Safety and other engineering disciplines to meet project objectives and milestones. If you have the following, we would love to hear from you: * Chartered Engineer with the IStructE or ICE (preferred) * Experienced in the static and seismic design of concrete (to ACI 318), steel and masonry structures. * Proficient in the use of Tedds and Staad Pro (advantage) * At least 4 years of experience in relevant project design work * General all round civil and structural design experience required, with experience working on alterations and modifications to existing structures, and nuclear new build projects. * Experience of working within a highly regulated industry. * Evidence of design capability working as part of a multi-discipline team. Many of our roles can be flexible on location, or have a hybrid working pattern, and we also offer flexible working patterns such as part-time hours or a nine-day fortnight. As a 'Disability Confident' employer, we will interview all disabled job applicants who match the essential criteria of the job description or specification. If you require any reasonable adjustments, please let us know