Company Description

About Assystem
At Assystem, our mission is to accelerate the global energy transition. With 8000 Switchers worldwide, we combine engineering excellence, project management expertise, and digital innovation to deliver landmark energy projects. In the UK, we play a key role in the future of nuclear energy, contributing to world-class programmes such as Hinkley Point C, Sizewell C, and the development of Small Modular Reactors.

Why Join the Community of Switchers?
Joining Assystem means becoming part of one of the world's three largest nuclear engineering companies. You'll collaborate with highly skilled professionals, tackling industry-defining challenges and contributing directly to cleaner, more sustainable energy solutions.

Eligibility Notice - Unfortunately, visa sponsorship is not available!

Job Description

This hybrid role is suited to candidates within commuting distance of Bristol, or those open to relocating with support available.

The role focuses on pipe stress analysis for complex, high-integrity piping systems and you will support safe, compliant design across multidisciplinary engineering programmes.

Your responsibilities will include:

Perform detailed pipe stress analysis using CAESAR II on complex piping systems
Assess thermal expansion, flexibility, vibration and seismic loading requirements
Review layouts, isometrics and models to support stress-informed design decisions
Evaluate supports, restraints and spring hangers for compliant system performance
Produce stress reports, calculations and technical justification documentation
Assess equipment nozzle loads for pumps, vessels and heat exchangers
Coordinate with piping, structural, process and project delivery teams
Review technical submissions, vendor documents and design deviation requests
Support design reviews, hazard studies and engineering risk assessments
Provide specialist guidance to junior engineers and wider project teams

Qualifications

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
Strong working experience using CAESAR II for pipe stress analysis
Good knowledge of ASME III, B31, or comparable piping codes
Experience on industrial, energy, nuclear, or major infrastructure projects
• Understanding of piping flexibility, support design and load assessment
Able to produce clear, accurate and defensible technical reports
Knowledge of static equipment including vessels and heat exchangers
Familiarity with E3D, PDMS, Navisworks or AutoCAD is beneficial
Chartership, or progress toward Chartership, would be advantageous

Additional Information

Ready to take your next step in nuclear?
This is a senior opportunity to join one of the world's leading nuclear engineering consultancies on one of the UK's most ambitious infrastructure projects. Shape critical decisions and play a direct role in the UK's clean energy transition.

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.