Do you have hands-on experience supporting construction delivery within a highly regulated environment specifically managing design documents, configuration control, TQs, and providing technical site support? Do you hold the required Sellafield site competencies (FGMSP, PFSP, C3, respirator/PVC) and have proven mechanical/plant knowledge suitable for overseeing installation, quality, and constructability reviews? Are you looking for a role where your technical expertise, and on-site problem solving skills directly influence safe, compliant, and successful delivery within one of the UK s most complex engineering environments? Due to an increase in workload, the client requires an experienced Mechanical Site Engineer to strengthen site-based engineering support and ensure robust technical oversight throughout the construction and installation phases. The role will be site facing and support the Construction Delivery Team on various projects, reporting to the Lead Site...