Senior CE&I Engineer - PFCS Projects (Sellafield) Contract | £51-£56/hour (Inside IR35) Warrington | Hybrid - 3 days on site / 2 days remote Are you a Senior Control, Electrical & Instrumentation Engineer looking to apply your expertise on one of Sellafield's most critical legacy clean-up programmes? We're seeking a Senior CE&I Engineer to support the PFCS (Pile Fuel Cladding Silo) projects, delivering robust CE&I design and safety documentation within a highly regulated nuclear environment. This role offers the opportunity to work at the heart of a nationally significant decommissioning mission, contributing to safety-critical systems that underpin long-term hazard reduction at Sellafield. Key Responsibilities Deliver CE&I design work packages across a broad range of PFCS project scopes Produce and check design substantiation, safety documentation, and technical deliverables Provide expert CE&I input into design justification and safety case documentation Develop and review functional safety deliverables in line with IEC 61508 (up to SIL 1) Resolve complex technical issues using safe, compliant and pragmatic engineering solutions Support downstream installation, commissioning and documentation activities What We're Looking For CEng or IEng preferred, or equivalent experience Strong background in CE&I design within nuclear or highly regulated environments Demonstrated experience delivering fit-for-purpose CE&I designs to time and budget Solid understanding of functional safety, SIL-rated systems, and safety case development Ability to break down complex technical challenges and clearly present resolution options to stakeholders Technical Knowledge & Standards Experience or familiarity with: CE&I regulations and standards including CDM, PUWER, BS EN 13849 / 62061, BS 7671 Industrial installation standards, UKCA / CE marking Engineering drawings, calculations, and applicable design standards Desirable Skills Design risk assessments, installation method statements, and EO packs Panel build documentation, technical files, and O&M manuals Experience with PLC / SCADA control systems and industrial network architectures A pragmatic, risk-based engineering approach grounded in sound judgement Why Join? Competitive £51-£56/hour (Inside IR35) Long-term opportunity on the Sellafield PFCS programme Hybrid working model - 3 days in Warrington Highly technical, safety-critical work with genuine national importance Join an experienced, collaborative CE&I engineering team Apply now to play a key role in delivering safe, effective solutions on one of the UK's most important nuclear decommissioning programmes