Mechanical Configuration Engineer

About Assystem

At Assystem, our mission is to accelerate the energy transition worldwide. With over 7,500 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.

Why Join the Community of Switchers?

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.

The Job Mission

This is a hybrid role, requiring 3–5 days on-site at Hinkley Point C in Bridgwater, with the remainder working remotely. We welcome candidates living within commuting distance and can provide a small relocation allowance for those moving closer to site.

You will join the Plant Configuration Team, with a focus on mechanical systems, ensuring that configuration data and processes remain accurate and reliable through design and construction. Your future team will rely on your ability to maintain compliance, resolve technical queries, and support the smooth progression of engineering and construction activities.

• Act as the point of contact for plant configuration in mechanical systems.
• Support configuration management standards across engineering and construction activities.
• Track and document changes, redlines, and updates to technical information.
• Coordinate reviews of design documents and drawings with engineering teams.
• Contribute to resolving design queries and supporting cross-discipline coordination.
• Maintain reference documentation lists and ensure accuracy following changes.
• Assist with audits and assurance checks in your area of responsibility.
• Provide clear technical data and updates to managers and stakeholders.
• Liaise closely with construction teams to ensure design intent is maintained.
• Champion best practice in configuration processes to support project success.

My profile

Essential Skills and Qualifications

• Degree or equivalent in Mechanical Engineering or related discipline
• Experience with configuration, design, or technical documentation processes
• Strong attention to detail when handling technical data and drawings
• Competent user of Microsoft Office tools (Word, Excel, etc.)
• Confident communicator with engineering and construction teams
• Experience in a regulated or highly technical environment
• Knowledge of large industrial projects (energy, oil & gas, steel, manufacturing)
• Familiarity with design change or construction change management processes
• Aware of quality management or technical audit practices

Be part of a once-in-a-generation engineering project that will transform the UK’s energy landscape. 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.

Are you a prospective or recent graduate?

Assystem offers you the opportunity to join our Switch to Grow UK Graduate Scheme, where you’ll gain hands-on experience in engineering, digital services, and project management by working on some of the world’s most critical energy projects. Be part of the challenge of the century; accelerating the switch to low carbon energy!