Principal EC&I Engineer - Major Regulated Projects (Nuclear Sector) Overview A leading global engineering consultancy is seeking a highly experienced Principal EC&I Engineer to support a portfolio of major nuclear projects (MR projects). This is a senior technical role suited to someone who thrives in complex, highly regulated environments and enjoys driving engineering excellence across multidisciplinary teams.Key Responsibilities Lead the delivery of EC&I engineering design, analysis, and documentation across major nuclear projects.Provide technical authority and oversight for EC&I systems, ensuring compliance with industry standards, regulatory requirements, and project specifications.Develop and review design packages, including calculations, schematics, block diagrams, cable routing, safety systems, and control philosophies.Act as a subject-matter expert for nuclear safety-related EC&I systems, supporting HAZOPs, design reviews, and safety case development.Collaborate closely with project managers, systems engineers, and other discipline leads to ensure integrated, high-quality engineering solutions.Mentor and guide junior and mid-level engineers, promoting best practice and technical development within the team.Engage with clients, stakeholders, and regulatory bodies to present designs, resolve technical queries, and support project delivery.Contribute to continuous improvement initiatives, innovation, and the development of engineering standards and processes. Skills & Experience Required Degree in Electrical, Control & Instrumentation Engineering or a related discipline.Chartered Engineer status (CEng) or working toward it.Extensive experience delivering EC&I engineering within nuclear, defence, or other highly regulated sectors.Strong understanding of nuclear safety principles, safety-related control systems, and relevant standards (e.g., BS EN 61508, BS EN 61511).Proven ability to lead multidisciplinary engineering teams and manage complex technical deliverables.Excellent communication skills and confidence engaging with clients and regulators.Eligibility to work in the UK without sponsorship. What's on Offer Opportunity to work on high-profile, nationally significant nuclear projects.A senior technical role with real influence over engineering strategy and project outcomes.Strong career progression pathways within a growing engineering organisation.Competitive salary and comprehensive benefits package. What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk