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Senior Process Engineer
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.
Job Description
๐ Join the Fusion and Modular Nuclear Business Unit! ๐ The Process engineer will support the design of complex thermal and fluid systems for the SMR project. This exciting new build project is embracing innovation to deliver a commercially . The role will provide analysis and calculation support across Turbine Island systems and will contribute to an internal centre of excellence for analysis and calculation methodology. Along with the cross-cutting lead you will generate static and transient flow and thermal analyses using various software tools and methods to demonstrate the system performance.
Your mission:
Intelligent Customer: Ensure supplier deliverables meet requirements, challenging designs where necessary. Design Development: Create and review Process Flow Diagrams, Piping & Instrumentation Diagrams, Layout Drawings, Component Sizing Calculations, and Specifications. Optioneering & Decision Making: Conduct and review studies and design documents. Systems Engineering: Develop and review functional and design requirements. Integration: Seamlessly integrate Turbine Island design into the broader power plant. Technical Support: Serve as the go-to expert for Turbine Island interface and stakeholder activities. Safety & Compliance: Support Design Reviews, HAZID/HAZOP studies, and ensure adherence to H&S Policies. Liaison: Work with safety teams on nuclear safety licensing and environmental permitting. Why Join the Community of Switchers?
Reasons to use Rodeo
Iโm in my final year doing Economics and I donโt know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer โ it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) donโt need a masters. Letโs look at the ones youโd be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant โ 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
Youโve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon โ deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme โ client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right โ and where to focus when applying.
๐ Over 55 years in nuclear engineering. ๐ Ranked among the top 3 largest nuclear engineering companies. ๐ผ Attractive social benefits, including an engaging Employee Committee and holiday bonuses. ๐ Ongoing training with numerous career opportunities. ๐ 70% of our managers are promoted internally! ๐ Hybrid work: 3 days remote per week.
Qualifications
Qualifications:
Experience: Background in the nuclear sector or regulated industries like thermal power generation, oil and gas. Technical Expertise: Knowledge of steam turbines, condensers, feedwater heaters, pumps, and piping systems. Project Delivery: Experience from FEED to detailed design and EPC delivery. Procurement & Supplier Liaison: Skilled in developing procurement specs and working with suppliers. Communication: Excellent skills for interacting with internal and external stakeholders. Safety Knowledge: Familiarity with UK Health and Safety regulations, safety systems, and HAZOP. Codes & Standards: Understanding of ASME, European, and UK standards. Systems Engineering: Experience or awareness desirable.


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Additional Information
Security: BPSS and SC required. Travel Ready: Ability to travel to Assystem offices and customer sites within the UK. Global Impact: Support major UK and international Nuclear Clients with key work packages. Ready to make a difference in the nuclear engineering world? Join us and be a part of the future of nuclear and fusion innovation! ๐โจ
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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 peopleโs ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
โIt took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what Iโve been looking for.โ
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