Mechanical Configuration Engineer in Almondsbury

At Assystem, our mission is to accelerate the energy transition worldwide. With over 8000 Switchers, we combine engineering expertise, project management, and digital innovation to deliver tomorrow’s energy infrastructure. In the UK, we are proud to be part of landmark nuclear projects including Hinkley Point C, Sizewell C and pioneering Small Modular Reactors (SMRs). Together, we are shaping a cleaner and more sustainable future.

Joining Assystem means becoming part of one of the world’s top three nuclear engineering companies. You’ll work on high-profile projects in an environment that values innovation, collaboration, and professional growth. Here, your expertise contributes directly to building the UK’s clean energy future while developing your own career on complex, large-scale engineering challenges.

This is a hybrid role, with regular presence required in Bristol or London. You will support configuration control across complex engineering systems during design and construction. You will act as a key interface between engineering, construction, and project controls functions. You will help maintain accurate technical baselines that underpin safe and compliant delivery.

• Implement configuration management across design changes, interfaces, and open technical points
• Coordinate multidisciplinary stakeholders to resolve cross-functional technical issues
• Participate in project coordination and governance meetings as required
• Produce configuration data, KPIs, and analysis to support informed decision making
• Support configuration management standards across engineering and construction activities
• Process redlines and update technical design documents and drawings
• Coordinate technical document reviews with engineering teams
• Support audits and assurance checks within your area of responsibility
• Maintain Plant Configuration Registers for allocated systems
• Manage design evolution requests and track interfaces between work packages

Nuclear experience is not essential, but is of course welcome. If you have worked within a highly regulated environment, your skills and approach are highly transferable and of strong interest to us. We also recognise that the perfect candidate rarely exists. If you feel you meet around 80% of the criteria and are motivated to develop further, we would strongly encourage you to apply.

• Degree in Mechanical, Electrical, or Civil Engineering
• Experience within one or more engineering disciplines
• Background in configuration, design, or technical documentation processes
• Strong attention to detail with technical data and drawings
• Confident use of Microsoft Word and Excel
• Able to communicate effectively with engineering and construction teams
• Experience in regulated or safety-critical environments
• Exposure to large industrial or infrastructure projects

This is a unique opportunity to develop your career in a supportive team while contributing to one of Europe’s most ambitious energy programmes.

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.