Senior Engineer - Technical Author Support (OB Leak TO-264) £50-55/hour | Inside IR35 Warrington - Minimum 3 Days On-Site Clearance: BPSS (Minimum) We're supporting a key Sellafield programme and are looking for a high-calibre Senior Engineer to provide full-time Technical Authoring support to the OB Leak TO-264 team. This role suits someone self-motivated, highly capable, and confident working autonomously on complex technical packages with minimal oversight. What We're Looking For Background: ? Chartered Engineer (any discipline) ? Nuclear industry experience - ideally MSSS / Silos exposure Experience: Candidates must have at least 4 of the following: * Technical Assessment & Review * Study Delivery * Strategy Development * Technology Development / R&D * Plant Trials * Early design delivery (Study & Concept phases) * Project or Programme Management The Role You'll support the Technical Team managing the leak within the MSSS Original Building, taking ownership of defined work packages and driving them through to delivery. Key Responsibilities: * Lead and deliver allocated packages of work autonomously * Scope and specify technical tasks * Produce and present NFRs and technical reports * Check, review, and assure work completed by other team members * Plan forward scope and support transition into design / projects * Engage with regulators on assigned work packages * Perform t...