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Our Vacancy

EC&I Designer

  • Nuclear
  • Permanent /
  • Warrington
  • 08/06/24
  • On site

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

EC&I Designer – Warrington

Permanent / Contractor
Join Our Team at Assystem!

🚀 Your Future Team:

Assystem is a well-established leader in the nuclear decommissioning sector. Partner of the Design Services Alliance. Expertise in waste management services for strategic nuclear clients in the UK. Offering life extension and feasibility assessment services.

🔍 Your Missions:

  • 🛠️ Interface with Integrated Design, facility, and project teams.
  • 🤝 Collaborate through all project phases.
  • 🌐 Work effectively in a team environment.

Why Join the Community of Switchers?

  • 🌟 Over 55 years in nuclear engineering.
  • 🏆 Ranked among the top 3 largest nuclear engineering companies.
  • 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses.
  • 📚 Ongoing training with numerous career opportunities.
  • 📈 70% of our managers are promoted internally!
  • 🏠 Hybrid work: 1-2 days remote per week.

My profile

🎓 Essential Experience:

  • 🖥️ Proficient in AutoCAD
  • 📊 Experience in CE&I Project Delivery
  • 💡 Skilled in building electrical services design (lighting, small power)
  • 📟 Expertise in CE&I Instrumentation and Security Systems design
  • 📐 Knowledgeable in CDM and IET wiring regulations
  • 📏 Space management and cable routing expertise
  • 👥 Strong communication skills, team player
  • 📜 Minimum ONC in a relevant discipline

🔧 Desirable Experience:

  • ⚛️ Radiometric Systems
  • ✅ BS 61508 compliance
  • 🏗️ Autodesk Revit, AVIVA, CIMAGE/DM Desktop


💥 Over 55 years of nuclear/Defence engineering expertise.

💥 Fantastic employee assistance programme, health and wellbeing resources, social benefits.

💥 Opportunities for career advancement with a focus on internal promotions.

💥 hybrid working/dynamic projects.

Due to the nature of the work, applicants must meet UK security clearance criteria.

We are committed to equal treatment of candidates and fostering diversity. Skills, talent, and innovation are what matter most. Bring your unique contributions and help us shape the future!

Ready to make a difference in the nuclear engineering world? Join Assystem today! 🚀



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.

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