Assystem
Mechanical CAD Engineer

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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
Reporting to the CAD Manager, the mechanical CAD engineer is responsible for the delivery of component models and definitions, system P&IDs, integrated layouts, and assemblies for the Small Modular Reactor (SMR). The role will involve developing an understanding of the layout and components within the SMR, collaborating with engineering designers, and generating CAD models and definitions to a high standard.
Your Mission:
- Integrated Layout Design: Develop layout solutions from concept to construction, based on design engineer specifications.
- CAD Modeling: Create component CAD models and definitions adhering to standards.
- Diagram Production: Generate 2D process, instrumentation, and ventilation system diagrams.
- Data Management: Assist in product configuration and data management processes.
- Quality Assurance: Maintain quality by conducting peer reviews of models and component definitions.
- CAD Environment Management: Set up and maintain CAD tools, templates, standards, QA processes, and training materials.
- Team Support: Provide CAD expertise, training, and mentorship to the CAD/BIM team and junior staff members.
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.
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet โ that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
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.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
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.
Why Join the Community of Switchers?
- 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: 1-2 days remote per week.
Qualifications
- Experienced Mechanical CAD Engineer or similar role, ready to drive innovation and excellence.
- Collaborative team player with a knack for transforming concepts into reality through engineering teamwork.
- Proficient in 2D CAD systems like AutoCAD for creating precise and detailed drawings.
- Skilled in 3D CAD/BIM systems (Revit, Inventor, Solidworks, Solid Edge, Siemens NX, PDMS, AutoCAD Plant 3D, or similar) for crafting dynamic models and drawings.
- Professionally qualified in an engineering-related field, bringing expertise and technical prowess.
- SC Clearance or the capability to achieve it, ensuring readiness for high-security projects.


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Additional Information
Due to the nature of the work, applicants must meet UK security clearance criteria.
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
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 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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