Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 8,000 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
🌟 Join Assystem as a Principal EC&I Engineer/ Protection Engineer! 🌟
👷 What You’ll Do:
🛠️ Lead & Deliver: Guide EC&I engineering teams in delivering innovative solutions for complex projects.
📋 Creation and updating: The working ETAP model for the project
🛠️ Production of: fault calculations
👷 Protection of: reports and arc flash risk assessments
👥 Power and protection specialism: Support to the wider design team. Contribute to the updating of Sellafield’s engineering standards and best practice.
📋 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.
Required Experience
Essential
Desirable:
Qualifications required
Essential
Desirable
**Security clearance**
This role requires the successful candidate to hold a minimum of a Security Check (SC) clearance without any caveats to that clearance.
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.
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.

Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change.
8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport.
We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures.
59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF...
Assystem is ranked in the Top 3 companies in the nuclear energy sector.