OverviewWe are looking for a Principal Mechanical Engineer to lead technical engineering studies and provide specialist input across all project phases in the nuclear sector. The role combines technical delivery, team leadership, and stakeholder engagement.ResponsibilitiesDeliver and manage mechanical engineering studies from concept through to detailed design, manufacture, construction, commissioning, and operations support.Produce and review technical deliverables, including reports, flow diagrams, P&IDs, drawings, layouts, hazard assessments, and specifications.Oversee and provide input into supply chain documentation, ensuring compliance with requirements.Undertake studies and develop solutions for handling systems, powder processing, glovebox operations, dismantling, and compaction technologies in high–hazard environments.Resolve technical queries with suppliers and ensure design intent is met.Act as a key technical contact for stakeholders and support the development of junior engineers.Skills & AttributesStrong communication and stakeholder management skills.Proactive and solution–focused, with the ability to work independently.Organised and adaptable, able to manage competing deadlines.Leadership qualities with an interest in mentoring others.Qualifications & ExperienceDegree in Mechanical Engineering (or equivalent).Chartered Engineer (IMechE) or working towards chartership.7–8+ years\' mechanical engineering experience in the nuclear sector (essential).Knowledge of design processes (concept, FEED, detailed design, supply chain review, commissioning).Experience delivering mechanical studies covering handling systems, powder processes, and glovebox operations, with consideration for manufacture, testing, operation, and decommissioning.Experience working in regulated, multi–disciplinary teams.All candidates must be eligible to obtain Security Clearance.Benefits25 days annual leave plus bank holidays / additional 1 day per year added (capped at 5)Bonus schemePrivate medical insuranceNon–contribution pension schemeFree on–site parkingInterested in this position? please click "apply now"We try to respond to all applicants, but sometimes this is not possible due to high volumes of applications; if you have not heard from us within 14 days, regrettably it means you have been unsuccessful on this occasion.Company information:This Permanent vacancy is being advertised by Rullion LtdSince 1978, Rullion has been securing exceptional candidates for a range of clients; from large well–known brands, to SMEs and start–ups. As a family–owned business, Rullion\'s approach is credible and honest, focused on building long–lasting relationships with both clients and candidates.Rullion is a forward–thinking recruitment company that specialises in providing a wide range of talent consultancy services to a diverse client base; from small start–ups to large household names.We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants. #J-18808-Ljbffr