Job Title: Lead Commissioning Engineer - Mechanical Location: Sellafield (Hybrid working available at line manager's discretion) Rate: £54.63/hour (Umbrella) Start Date: ASAP Contract: Until end of project About the Role We are currently recruiting for a Lead Commissioning Engineer - Mechanical to join a major nuclear commissioning project. This is a senior-level position leading commissioning activities, with responsibility for ensuring safe delivery, managing documentation, coordinating technicians, and maintaining compliance throughout all testing phases. You'll work in a dynamic and high-hazard environment where safety, leadership, and attention to detail are critical. This is an excellent opportunity for experienced commissioning professionals to contribute to a long-term infrastructure programme that supports national decommissioning goals. Key Responsibilities Act as a safety role model, promoting a zero-harm culture across all workstreams Lead and coordinate a team of commissioning engineers and technicians Manage all testing activities and ensure adherence to commissioning processes Oversee the preparation and execution of commissioning test documentation Liaise with stakeholders, including regulatory compliance representatives Use completions management systems for work planning, progress tracking, and handovers Manage commissioning aids, field data, and documentation Participate in...