Company Description Assystem is an international company with one mission: accelerate the energy transition around the world. Every day, our 6,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition. Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering. To ensure a viable, efficient, and reliable energy future for all. Job Description Join Assystem – Powering the Future of Engineering Are you ready to take the lead in complex, high-impact engineering projects within the UK's most critical infrastructure sectors? At Assystem Energy & Infrastructure Ltd (AEIL), we're looking for a Senior Electrical, Control & Instrumentation (EC&I) Engineer to strengthen our growing EC&I business. This is your opportunity to step into a pivotal role - working at the forefront of Nuclear Decommissioning, Defence, New Build, and Infrastructure - where your technical leadership will directly shape innovative, safe, and sustainable engineering solutions. Your missions: As a Senior EC&I Engineer, you will: Lead and deliver EC&I solutions with minimal supervision across a variety of high-profile projects. Supervise small EC&I teams, mentor junior engineers, and oversee the quality of engineering deliverables. Engage directly with clients, providing expert advice and developing design proposals. Apply your understanding of health & safety, environmental impact, design lifecycle, and regulatory compliance. Drive project success by managing schedules, reviewing technical output, and identifying scope changes. Be the technical authority on at least two EC&I specialties such as: ⚡Control Systems ⚡Functional Safety ⚡Radiometrics & Special Instruments ⚡Electrical Supply Infrastructure ⚡Process Instrumentation ⚡Machinery Safety Compliance (2006/42/EC) Why join the community of Switchers? As one of the Top 3 Nuclear Engineering companies in the world, Assystem offer a competitive benefits package which includes: 25 days of annual leave bank holidays 8% company pension contributions Healthcare cash-plan to get money back on dental, medical, physical care Employee assistance programme including 24/7 access to free mental health support, virtual gym classes and more Get professional and industry membership fees paid for. Qualifications Qualifications/Skills to be successful: Essential: A strong track record in delivering EC&I engineering solutions across full project life cycles. Minimum of 3 years as a Senior Engineer or equivalent in a highly regulated industry (e.g., Nuclear, Defence, Oil & Gas). Proficiency in relevant standards like BS7671, Electrical Equipment (Safety) Regulations 2016, and strong documentation/configuration management experience. A degree in Electrical, Control, or Instrumentation Engineering (or HNC/HND with significant experience). Membership with a professional body (e.g., IET) and working towards or holding EngTech status or above. Desirable: Chartered Engineer (CEng) status. Experience with nuclear safety cases, BIM projects, functional safety standards, and EC&I-specific CAD tools (e.g., AutoCAD Electrical, EPLAN). Familiarity with technical design risk management (e.g., HAZOP, FMECA). Apply now to join a collaborative, world-class engineering environment where you’ll make your mark on projects that power progress. Additional Information Able to Achieve SC clearance. Sole UK national Hybrid workingWe 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