Job Title: Principal Mechanical Engineer - PNED Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: £45,628 - £57,500 dependent on experience What you''ll be doing: Collaborate closely with the build organisation, providing engineering support to ensure the final product aligns with original design intent Demonstrate a strong understanding of key requirements and critical dimensions related to major structural components Lead the assessment and implementation of design changes impacting primary structural elements, whether driven by emergent issues, continuous improvement, or process updates Support, or where appropriate, serve as the engineering representative within test and authorisation groups Develop specialised knowledge of the unique build sequence of the Reactor Compartment Unit and deliver ongoing engineering support throughout construction Represent the engineering function during the planning and execution of major construction milestones within the Reactor Compartment Unit''s scope Investigate and present robust technical solutions to challenges encountered during the construction of the Naval Reactor Plant Provide well-reasoned technical recommendations to key stakeholders, including Rolls-Royce and the Ministry of Defence, to support or constructively challenge existing requirements Your skills and experiences: Essential: Degree-level qualification