Mechanical Design Engineer – Nuclear Sector Location: UK (Hybrid / Office / Site-Based Options) Employment Type: Permanent / Long-Term Contract Experience Required: Minimum 3 years in the nuclear industry Overview We are seeking an experienced Mechanical Design Engineer to support major nuclear engineering and energy infrastructure projects across the UK. The successful candidate will be responsible for producing high-quality mechanical designs, supporting system integration, and ensuring compliance with nuclear safety, regulatory, and quality requirements. Key Responsibilities * Produce, review, and validate mechanical designs, drawings, 3D models, system diagrams, and technical specifications. * Carry out engineering calculations, stress assessments, thermodynamic analysis, and design substantiation. * Manage design changes, technical queries, and engineering documentation in line with nuclear governance and configuration-control processes. * Work collaboratively with civil, electrical, and systems engineers to integrate mechanical equipment into complex plant environments. * Participate in design reviews, HAZOP/HAZID studies, risk assessments, and quality checks. * Liaise with suppliers, contractors, and project stakeholders to resolve design issues and confirm technical solutions. * Ensure all engineering activities comply with nuclear ...