Mechanical Engineer

⚡️💡 About Assystem

Assystem is committed to accelerating the global energy transition. With over 7,500 Switchers across the globe, we combine deep-rooted engineering expertise with digital innovation to help build a sustainable energy future. In the UK, we play a vital role in landmark projects such as Hinkley Point C, Sizewell C, and the development of SMRs, supporting the safe and efficient delivery of nuclear power infrastructure.

🤝 Why Join the Community of Switchers?

You’ll be joining one of the top three nuclear engineering companies in the world. Our mission-led approach places you at the heart of the energy transition. At Assystem, you’ll collaborate with industry leaders, contribute to world-class nuclear projects, and gain exposure to some of the most ambitious engineering programmes on the planet.

🚀 The Job Mission

We’re welcoming Mechanical Engineers from regulated industries like oil & gas, defence, water, renewables, aerospace, and more — to bring their skills into the UK’s most advanced energy infrastructure project: Hinkley Point C. Whether your background is in design, installation, commissioning or QA, you’ll find familiarity in our systems, challenges, and pace.

Your future missions may include:

⚡️ Developing and reviewing mechanical specifications for a wide range of site equipment

⚡️ Supporting the surveillance, installation or commissioning of mechanical systems

⚡️ Resolving multidisciplinary interface issues between civil, mechanical and electrical scopes

⚡️ Collaborating with suppliers to ensure delivery meets quality and compliance standards

⚡️ Participating in site-based engineering activities aligned with safety and delivery goals

⚡️ Contributing to equipment integration, from valves and tanks to rotating machinery

⚡️ Supporting process improvements and embedding engineering assurance

⚡️ Engaging in cross-discipline meetings to progress technical delivery

Essential Skills:

🛠 Background in mechanical engineering (degree, apprenticeship, or equivalent experience)

🛠 Experience in regulated sectors

🛠 Knowledge of mechanical equipment used in infrastructure or industrial environments

🛠 Ability to understand or work with technical drawings, specifications, or site procedures

🛠 Willingness to work hybrid with regular presence on-site at Hinkley Point C (Bridgwater)

Desired Skills:

✔️ Supplier-facing experience or contract surveillance involvement

✔️ Experience in mechanical installation, commissioning

✔️ Familiarity with technical risk, compliance or system handover

✔️ Experience in fluid systems, rotating equipment, tanks, valves or pressure systems

✔️ Ability to thrive in a dynamic site-based delivery environment

🌟 Ready to shape the future? Join your future team on-site at one of the most ambitious nuclear power projects in Europe. Be part of a collaborative mission to uphold the highest construction and quality standards.

Benefits include:

🏡 Hybrid Working Opportunity

🕒 Flexible working hours

🛡️ Pension scheme (8% company / 4% personal)

🏖️ 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 & 3× 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.