⚡️💡 About Assystem
At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,00 Switchers combine deep engineering heritage and project delivery expertise with advanced digital technologies. In the UK, we support landmark low-carbon projects including Hinkley Point C, Sizewell C and Small Modular Reactors. We work at the heart of complex nuclear programmes, helping to deliver safe, efficient and future-ready energy infrastructure that supports national and global sustainability goals.
🤝 Why Join the Community of Switchers?
You’ll be joining one of the three largest nuclear engineering companies in the world, recognised globally for technical excellence and delivery capability. At Assystem, your future team works collaboratively across disciplines and borders, supporting some of the most complex nuclear programmes in Europe. You’ll benefit from exposure to major infrastructure projects, strong career development pathways, and a culture built on safety, quality and innovation.
🚀 The Job Mission
This is a hybrid role, with flexibility for partial office working.
You will support configuration management activities on the Sizewell C nuclear project.
You will ensure plant configuration data remains accurate throughout design and construction phases.
• Implement configuration management across design changes and technical interfaces
• Maintain and update plant configuration registers for allocated systems
• Coordinate multidisciplinary stakeholders to resolve technical configuration issues
• Support processing and review of design changes, notices and redline updates
• Track interfaces between engineering and construction work packages
• Produce accurate reports, KPIs and data for project management teams
• Support compliance with configuration management standards and governance
• Assist with internal audits and technical assurance activities
• Participate in project coordination and decision-making meetings
🛠 Essential Skills
• Degree in Mechanical, Electrical or Civil Engineering
• Experience within engineering, design or technical documentation environments
• Familiarity with configuration or design change management processes
• Strong attention to detail handling technical data and drawings
• Competent user of Microsoft Word and Excel
• Clear communicator with engineering and construction stakeholders
✔️ Desired Skills
• Experience working in a regulated or safety-critical environment
• Knowledge of large industrial or infrastructure projects
• Understanding of quality management or technical assurance practices
• Experience coordinating across multidisciplinary engineering teams
🌟 Ready to shape the future of nuclear energy?
Join Assystem and become part of a globally respected engineering organisation delivering one of the UK’s most significant nuclear projects. This role offers technical challenge, long-term career development and the opportunity to work alongside industry leaders on nationally critical infrastructure.
Benefits include:
🏡 Hybrid Working Opportunity
🕒 Flexible working hours
🛡️ Pension scheme (8% company contribution / 4% personal contribution)
🏖️ 25 days’ paid annual leave + bank holidays + option to buy or sell days
💼 Professional fees reimbursed
💰 Employee referral scheme
🤒 Competitive Sick Pay – Support when you need it
🏥 Income Protection & 3x Salary Death-in-Service Cover
💪 Free Digital Gym Access – Expert-led fitness classes
📞 24/7 Employee Support Line – Mental health, financial & legal help
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.
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.
