Piping Stress Engineers

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.

The Job Mission

You will perform detailed pipe stress analysis for high-integrity piping systems across complex nuclear projects.

You will provide specialist engineering input covering flexibility, thermal, seismic and equipment loading assessments.

Perform detailed pipe stress analysis using CAESAR II software

Assess flexibility, thermal expansion, vibration and seismic loading

⚙️Evaluate pipe supports, restraints and spring hanger requirements

Apply ASME, EN, RCC-M and project-specific design requirements

Assess piping loads transferred onto connected mechanical equipment

Produce clear stress reports, calculation notes and technical justifications

️Review piping layouts, isometrics and 3D models for stress requirements

Coordinate technical interfaces with piping, process and structural teams

️Support design reviews, risk assessments and nuclear quality requirements

Provide technical guidance to junior engineers and project teams

Degree in Mechanical Engineering or related engineering discipline

Proven experience as a Pipe Stress Engineer on complex projects

Strong proficiency using CAESAR II for piping stress analysis

Working knowledge of ASME Section III and B31 piping codes

⚙️Understanding of static equipment including vessels and heat exchangers

Strong understanding of piping flexibility and support methodologies

Excellent technical report writing and documentation skills

Strong analytical, problem-solving and attention-to-detail capabilities

️Experience within nuclear or other high-integrity industries advantageous

Knowledge of E3D, PDMS, Navisworks or AutoCAD advantageous

 Ready to shape the future?

Join your future team delivering one of Europe’s most ambitious energy programmes. We welcome applicants across all levels of experience with mechanical, electrical, M&E or construction delivery backgrounds. This is your opportunity to develop within a sector offering long term stability and progression.

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 and 3x Salary Death in Service Cover

Free Digital Gym Access – Expert led fitness classes

24/7 Employee Support Line – Mental health, financial and legal help

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - 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.

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.

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - 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.

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.