Senior Mechanical Engineer – Pressure Equipment
Assystem Bridgwater, England, United Kingdom
Assystem is committed to accelerating the global energy transition. With 8000 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.
Please note – we’re unable to offer visa sponsorship for this role, so applicants must have full right to work in the UK
Job Mission
This is a site role, therefore we can only consider candidates living within a commutable distance of Bridgwater, or willing to relocate, with a small relocation package available. You will support pressure testing activities across key Nuclear Island systems. You will act as the link between contractors, construction teams and commissioning teams. You will help drive safe, compliant and efficient delivery of Hydrostatic Pressure Tests.
Responsibilities
* Review contractor documentation and define system test boundaries
* Plan temporary devices, readiness reviews and test logistics
* Consolidate inputs from project leads to optimise HPT sequencing
* Coordinate with piping and construction teams to streamline activities
* Identify FCRs, NCRs, RFIs and resolve issues impacting test readiness
* Supervise on site tests to ensure compliance with quality requirements
* Control documentation and provide clear handover to commissioning
Required Skills and Qualifications
* Strong background in construction or heavy engineering projects
* Knowledge of industrial mechanical standards
* Experience with large bore or small bore piping installations
* Clear communication skills for contractor and stakeholder management
* Ability to work independently while recognising escalation points
Benefits
* 25 days’ paid annual leave + bank holidays + option to buy or sell days
* Competitive Sick Pay – Support when you need it
* 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.
Seniority Level
Mid‑Senior level
Employment Type
Full‑time
Job Function
Business Consulting and Services, Construction, and Services for Renewable Energy
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