Senior or Principal Mechanical Engineer (Piping)

Assystem is an international company with one mission: accelerate the energy transition around the world.

Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.

We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.

Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked third in the world for nuclear engineering.

To ensure a viable, efficient, and reliable energy future for all.

🔧Piping Engineer – Nuclear Engineering (Assystem)

📍Location: Central Glasgow (Hybrid: 2–3 days/week onsite)
🕓Type: Staff or Umbrella Contractor

Join Assystem’s dynamic, multi-disciplinary engineering team supporting one of our major client . As aPiping Engineer, you’ll play a key role in ensuring the safety, reliability, and compliance of infrastructure across major operational sites.

🧠Summary of the Role

You’ll work alongside Mechanical, Civil, Structural, Electrical, and Building Services Engineers to:

• 🧩 Develop and maintain Infrastructure Design Substantiation documents

• 🛠️ Manage and assessdesign changes and concessions

• 📊 Present design justifications tonuclear safety committees

• 🔧 Produce and maintainEIMT (Examination, Inspection, Maintenance & Testing) schedules

• 🧾 Review and assessPeriodic Safety Reviews and technical documentation

• 💬 Provide experttechnical advice to internal and external stakeholders

• 🧠 Apply advancedpiping and process design principles in a nuclear/high-hazard environment

Experience

Essential:

• 🔩 Proven experience as aPiping Engineer in industrial plant and machinery environments

• 📘 Strong understanding ofBritish & European design standards and best practices

• ⚙️ Practical experience acrossconcept, detailed design, and construction stages (preferably industrial or maritime projects)

• 🧱 Skilled indesign assessment of plant and equipment to withstand hazards

• 🔧 Proficient inpipe stress analysis

• 🧾 Capable of producingrobust technical justifications and documentation for design modifications in high-hazard industries

• 🤝 Experienced in contributing tomulti-disciplinary engineering projects

Desirable:

• ☢️ Previous experience inhigh-risk or nuclear environments

• 🔍 Familiarity withHAZID/HAZOP and safety case development

• 🏗️ Experience in theUK nuclear industry (energy or defence), including safety-related structures, systems & components

• 📖 Knowledge ofUK and US nuclear regulations, codes, and standards

🎓Qualifications & Training

Essential:

• 🎯 MinimumHNC (or equivalent) in a relevant engineering discipline

• 🧑‍🔧Incorporated Engineer status or equivalent experience

• ☢️ Willingness to complete aNuclear Introductory Course within 6 months (if from a non-nuclear background)

Desirable:

• 🎓Engineering Degree (BEng/MEng)

• 🏅Chartered Engineer (CEng) status

Due to the nature of this role the successful candidate will require Security clearance. To gain this they will be required to be a Sole UK national.

Benefits include:

• Pension scheme (8% company contribution / 4% personal contribution)
• 25 days’ paid annual leave + bank holidays + option to buy or sell days
• Professional fees reimbursed
• Flexible working
• Employee referral scheme

Sole UK National, Security Clearance required to start.

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.