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 and diverse 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. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations. 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 Box Encapsulation Plant project is one of the most important construction projec ts at the Sellafield Site, the plant will play a vital role in Sellafield’s 100-year clean-up programme by taking nuclear waste recovered from the sites original waste plants and encasing it in concrete so it can be stored in a modern building. The plant is primarily designed to deal with waste from the Magnox Swarf Storage Silo, one of four legacy waste plants prioritised for clean-up by Sellafield Ltd’s owner, the Nuclear Decommissioning Authority (NDA). Alongside that work, the plant will also receive certain wastes from the other three legacy waste stores, the First Generation Magnox Storage Pond, the Pile Fuel Storage Pond, and Pile Fuel Cladding Silo. For our team in Warrington we are seeking a Principal Civil & Structural Engineer. You will be required to travel to site in Sellafield. You will report to the Area Lead Engineer 000 and the Engineering Manager on a full time basis. **Key responsibilities of the role as follows:** + To lead and manage other engineers and their workload to budget and programme as required + Provide engineering support to construction and commissioning in accordance with scheduled activities + Establish and maintain strong relationships with the permanent works design team in Warrington, on site construction team and the client’s intelligent customer team to achieve early engagement in the resolution of technical issues as they arise. + Respond to technical queries, product permits, concessions and non- conformances in a timely manner arising from construction activities + Daily interfacing on the construction site with construction personnel, providing direct intervention as necessary to ensure the engineering design intent is met as per the drawings and specifications + Produce and check structural calculations (steelwork, concrete and masonry), technical reports and details as necessary for site modifications with approval of the permanent works team + Review contractor method statements, inspection plans etc + Participate in and attend walk downs, meetings and reviews as required + Degree qualified, preferably Chartered Engineer (MIStructE or MICE) + Nuclear industry experience preferred but not essential + A pro-active, self-starter with good communication, analytical and team working skills + Understanding of CDM Regulations and duties as a Designer **Our Culture:** Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees. We aim to embed inclusion and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centered on inclusion and diversity. We partner with VERCIDA to help us attract and retain diverse talent. 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 the team .