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UK remote

Principal EC&I Engineer

gbPosted 16 Sept 2026

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About this role

🌟 Join Assystem as a Principal EC&I Engineer! 🌟 🔍 About the Role: Assystem Energy & Infrastructure Ltd is growing, and we’re seeking a dynamic Principal Electrical, Control & Instrumentation (EC&I) Engineer to lead our most exciting projects across Nuclear, Defence, New Build, and Infrastructure. You’ll provide top-notch technical leadership, working with high-profile clients like Sellafield, Rolls-Royce, EDF, BAE, F4E, and Hinkley Point.

👷 What You’ll Do: 🛠️ Lead & Deliver: Guide EC&I engineering teams in delivering innovative solutions for complex projects. 📋 Plan & Prioritize: Shape project plans, prioritizing Health & Safety and Environmental standards. 📐 Design Reviews: Act as Lead Engineer, overseeing design reviews, technical discussions, and formal evaluations. 🤝 Support & Collaborate: Provide expert advice, supporting both staff and clients through technical challenges.

👥 Mentor & Motivate: Mentor team members, set objectives, and foster a collaborative work environment. 💰 Optimize: Ensure projects stay on budget and aligned with schedules, working closely with Project Managers. 📞 Client Liaison: Serve as the primary technical contact, coordinating with clients throughout each project. 🎓 What You Bring: 🎖️ Experience: 10+ years in EC&I design and management, with expertise in two areas (e.g., Control Systems, Radiometrics, Functional Safety).

📚 Industry Knowledge: Familiarity with highly regulated industries, control systems, design phases, configuration management, and life cycle stages. 🌍 Leadership Skills: Proven abilities in leading teams, managing project complexities, and driving continuous improvement. 🎓 Qualifications: Degree (or equivalent) in Electrical, Instrumentation, or Control Engineering; advanced degrees are a plus. ✨ Bonus Skills: 🔬 Lab Facility Design: Experience with laboratory facilities and nuclear systems.

🔋 Electrical Distribution: Expertise in HV/LV electrical systems and modular building projects. 🏗️ Sellafield Experience: Involvement in Sellafield projects or similar environments is a plus! 🚀 Ready to lead cutting-edge EC&I projects in a thriving environment? Apply now and help drive Assystem’s future of innovative engineering solutions! **Security clearance** This role requires the successful candidate to hold a minimum of a Security Check (SC) clearance without any caveats to that clearance.

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Due to the nature of work this role will be delivering and for the protection of certain assets, the successful candidate has to be a UK national or in MoD approved cases a Dual National from a non-ITAR country. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future. Today, Assystem is among the top three independent nuclear engineering firms worldwide.

With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Source listing: smartrecruiters_assystem

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