Commissioning Manager (Mechanical Bias) - AWE Burghfield Location: AWE Burghfield (site-based, full-time) Rate: £600/day (Umbrella PAYE, Inside IR35 - all-in) Duration: ASAP - September 2026 Clearance: SC preferred (must be eligible to obtain) We are seeking an experienced Commissioning Manager (Mechanical) to support a major programme within a highly regulated nuclear environment. This role requires a technically strong, self-starting professional with deep experience in mechanical systems, commissioning processes, and documentation within controlled environments. Role Overview Lead and manage commissioning activities across mechanical systems and associated infrastructure Oversee full commissioning lifecycle including planning, execution, and handover Manage and review commissioning documentation, ensuring accuracy and compliance Coordinate with multidisciplinary teams to ensure systems are delivered safely and to specification Act as a technical authority on mechanical commissioning matters Systems & Technical Scope Mechanical plant and building services systems Gas systems and associated equipment (e.g. compressed air, specialist gases) HVAC and ventilation systems Pressure systems and distribution networks Interface with electrical and control systems where required Key Responsibilities Lead Site Acceptance Testing (SAT) and support Factory Acceptance Testing (FAT) activities Review and approve commi...