Senior Mechanical Engineer - Pressure Equipment

Our Vacancy# Senior Mechanical Engineer – Pressure Equipment
* Nuclear* Permanent /
* Bridgwater* United Kingdom
* 27/04/26
* On site
* Share
** About Assystem
** At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers blend historical engineering expertise with cutting-edge digital technologies to drive this change. Join us in revolutionizing the energy sector and making a significant global impact.
Be part of one of the top three largest nuclear engineering companies globally. At Assystem, you’ll contribute to groundbreaking projects that push the boundaries of innovation and engineering excellence. Join a community committed to driving forward the future of energy.  
* Benefits include:
* Hybrid Working Opportunity     Flexible working hours     Market Leading 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##

Job Description

This role offers hybrid working, requiring candidates within commuting distance of Bridgwater or open to relocation support.  You will oversee pressure systems compliance and structural integrity across defined project scopes and act as the technical authority, supporting delivery, safety case alignment, and regulatory engagement.

Ensure pressure systems compliance requirements are defined, maintained, and implemented effectively  Support structural integrity safety case development across allocated project scope  Make technical decisions on compliance issues, escalating where necessary appropriately  Interface with project managers, regulators, and supply chain partners regularly  Ensure policies, processes, and contracts meet compliance and quality requirements  Support delivery of pressure equipment manufacture, installation, and conformity activities  Act as single point of contact for pressure compliance within scope  Provide technical guidance and coaching to internal teams and suppliers  Monitor third-party delivery to ensure compliance with project expectations  Support wider project needs based on experience and business requirements

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 Engineering or related engineering discipline  Knowledge of pressure systems regulations and structural integrity requirements  

Experience with RCC-M or ASME pressure equipment design codes  Background in power generation, nuclear, oil and gas, or petrochemical sectors  Experience working within multidisciplinary project environments  Understanding of conformity assessment, manufacturing, and installation processes  Ability to make technical decisions and manage compliance responsibilities  Experience engaging with regulators and supply chain stakeholders  Working knowledge of UK regulatory requirements is advantageous  Chartered status or working towards chartership with relevant institution

This is an opportunity to contribute to nationally significant energy infrastructure while developing your technical depth within a globally recognised engineering organisation. If you want real responsibility, exposure to complex mechanical systems, and the chance to grow within one of the world’s leading nuclear engineering companies, this role offers long-term progression and stability.
* Benefits include:
* Hybrid Working Opportunity   Flexible working hours   Market Leading Pension scheme (8% company contribution / 4% personal contribution)   25 days’ paid annual leave + bank holidays + option to buy or sell days  …