Principle Mechanical Engineer

OverviewWe are seeking an experienced Principal Mechanical Engineer to provide technical leadership and strategic oversight for the delivery of mechanical systems across multiple infrastructure assets within a major rail and tunnelling project environment. This role will suit a highly experienced engineer with a strong background in mechanical engineering design, construction delivery, systems integration, stakeholder management, and multidisciplinary infrastructure projects. The successful candidate will act as the senior mechanical authority, leading technical decision-making throughout the project lifecycle from detailed design development through installation, testing, commissioning, and asset handover.Key ResponsibilitiesProvide technical leadership for the delivery of mechanical systems including Fire Main, Public Health, Drainage, Pumping Systems, Ventilation, and associated MEP infrastructure.Act as the principal mechanical engineering authority across multiple project assets, ensuring engineering excellence and compliance with project requirements.Lead Stage 5 design development and construction integration activities between client teams, design consultants, subcontractors, suppliers, and delivery partners.Review and approve complex technical submissions including drawings, calculations, BIM models, hydraulic analyses, stress/thrust calculations, and system performance assessments.Drive engineering governance and ensure compliance with project specifications, ..... full job details .....