Mechanical Engineer - Valve Specialist

About Assystem

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

As a member of Assystem, you’ll be part of a team driving the low‑carbon energy future. We’re ranked second globally in nuclear engineering, offering you the chance to work on world‑class projects like Hinkley Point C. Together, we’ll innovate and shape tomorrow’s energy solutions.

This hybrid role is suited to candidates within commuting distance of Bridgwater or those willing to relocate with support provided.

You will act as the valve engineering specialist supporting safety‑classified nuclear plant systems. The role spans design review, construction support, commissioning activities and technical acceptance.

• Review valve‑related design changes, concessions and technical queries
• Provide technical oversight across valve design, installation and testing
• Ensure compliance with nuclear safety, quality and regulatory requirements
• Assess supplier documentation, specifications and engineering justifications
• Coordinate technical interfaces with contractors, designers and manufacturers
• Support resolution of complex valve engineering and operational issues
• Monitor construction activities to ensure compliance with approved designs
• Support commissioning activities and validation of valve performance requirements
• Contribute to technical risk management and lessons learned initiatives
• Support configuration control and acceptance of engineering modifications

• Degree qualified in Mechanical Engineering or related discipline
• Experience with valve qualification, testing and commissioning programmes
• Background within nuclear, power generation or highly regulated industries
• Knowledge of valve standards, pressure equipment regulations and engineering codes
• Experience reviewing technical specifications and supplier documentation
• Understanding of quality assurance and configuration management processes
• Strong analytical, problem‑solving and engineering decision‑making abilities
• Excellent stakeholder engagement and multidisciplinary collaboration skills
• Strong technical reporting and communication capabilities
• Chartered Engineer status or professional registration progress desirable

• Hybrid Working – Flexibility to work from home and the office
• 25 Days Annual Leave + Bank Holidays
• Buy & Sell Holiday – Make your time off work for you
• 8% Company Pension Contributions
• Income Protection & 3x Salary Death‑in‑Service Cover
• Competitive Sick Pay – Support when you need it
• Healthcare Cash Plan – Claim back on dental, optical & more
• Free Digital Gym Access – Expert‑led fitness classes
• Exclusive Discounts – Restaurants, days out & top brands
• 24/7 Employee Support Line – Mental health, financial & legal help
• Cycle to Work Scheme – Save money & go green
• Free Flu Jabs & Eye Test Vouchers
• Paid Professional Membership Fees
• Volunteer Days – Make a difference on company time

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 safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.