Job Description

Company Description

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.

Your Mission on this Role:

Principal Process Engineer

Join Assystem's multi-disciplinary engineering team supporting one of our major clients. You'll work alongside Mechanical, Civil, Electrical, and Piping Engineers to ensure safe, compliant, and efficient design and operation of nuclear facilities.

Key Responsibilities

Develop, author, and maintain

Infrastructure Design Substantiation

documents ? Manage

design changes and concessions

, ensuring compliance with safety and regulatory standards Prepare and present

design justifications

to client nuclear safety committees Produce and maintain

EIMT (Examination, Inspection, Maintenance & Testing)

schedules and reports Contribute to

Periodic Review of Safety

reports and assessments Provide

technical advice

and guidance to internal and external stakeholders Conduct

Independent Technical Assessments (ITA)

and

Peer Reviews (IPR)

Apply advanced

engineering methods and technologies

in a high-hazard nuclear environment ? Review and approve

technical reports, calculations, and safety case submissions

Qualifications

Essential Skills & Experience

Proven experience producing key

Process Engineering deliverables

- Basis of Design, Mass Balances, PFDs, P&IDs, Schedules, Datasheets, and Calculations Strong knowledge of

British & European design standards

and best practices + ? Hands-on experience across

concept, detailed design, and construction stages

(industrial and/or maritime projects preferred) Skilled in

design assessment

of plant and equipment against potential hazards Ability to produce

robust technical justifications

and documentation for design modifications in high-hazard environments Experience working on

multi-disciplinary engineering projects

, providing key process input

Desirable Skills

+ ? Previous experience in

high-risk or nuclear environments

Familiarity with

safety case development techniques

(e.g., HAZID/HAZOP) ? Experience in the

UK nuclear industry

(energy or defence) - design and assessment of safety-related systems and components Knowledge of

UK & US nuclear regulations

, codes, and standards

Qualifications & Training

Essential:

+ Minimum

HNC

(or equivalent) in a relevant engineering discipline
+

Incorporated Engineer

status or equivalent experience
+ Willingness to complete a

Nuclear Introductory Course

within 6 months (if from a non-nuclear background)

Desirable:

+

Engineering Degree

(BEng/MEng)
+

Chartered Engineer (CEng)

status

Additional Information

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, Hybrid working from home/Assystem Office

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, SC clearance required to start


Umbrella contractor or staff


Hybrid role with 2-3 days per week in the Client office in central Glasgow and occasional travel to the main Client site near Helensburgh


Umbrella contractor or staff position



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.