Principal Process Engineer - Warrington 12 Month Contract | Inside IR35 | £63-£70 p/hr (Umbrella) SC Clearance Required (or ability to obtain) We're recruiting a Principal Process Engineer to lead technical delivery on high-profile nuclear sector projects, including work relating to reprocessed uranium (RepU). You'll guide multidisciplinary teams, act as a subject matter expert, and ensure engineering excellence across complex project scopes. What You'll Do Lead and mentor engineers and technical specialists Manage and deliver high-quality technical outputs Oversee calculations, reports, analyses and specifications Ensure compliance with safety, standards and procedures Work closely with customers and support business development Drive best practice, audits, and continuous improvement What You'll Need Engineering degree (or equivalent) Chartered Engineer status Strong experience leading engineering/analysis teams Excellent technical communication skills Background in complex industrial, nuclear, defence or similar environments (desirable) Apply now to lead critical engineering work and shape the future of advanced nuclear projects