About Assystem
Assystem is a global leader committed to accelerating the energy transition. With 7,750 employees across 12 countries, we tackle the monumental task of switching to low‑carbon energy. Our 55+ years of experience in highly regulated sectors ensure we deliver top‑notch engineering, project management, and digital solutions.
Job Description
Join the Fusion and Modular Nuclear Business Unit! You will work with the Simulation and Assessment team on nuclear projects, applying Finite Element Analysis (FEA) to assess and verify components in compliance with design codes such as ASME III and RCC‑M. You will participate in project planning, delivery, reporting, and stakeholder communication.
* Plan, undertake and report simulation and assessment projects using ANSYS, Abaqus FEA or similar, and calculations with MathCAD.
* Use engineering and data management software including product lifecycle management, MS Office, and Teams.
* Collaborate with team members, communicate internally and with external clients, and work independently when required.
* Deliver high‑quality outputs on time and within cost budgets.
* Understand commercial context, manage requirements compliance, change and technical risk.
* Organise and plan effectively; excellent communication skills.
* Write clear, concise, accurate technical reports.
Why Join The Community of Switchers?
* Over 55 years in nuclear engineering.
* Ranked among the top three largest nuclear engineering companies.
* Attractive social benefits, holiday bonuses, and an engaging employee committee.
* Ongoing training with numerous career opportunities.
* 70% of our managers are promoted internally.
* Hybrid work: 1-2 days remote per week.
Qualifications
Essential
* Excellent technical fundamentals – aptitude for calculations, appreciation of structures, mechanics and fluids, ability to ‘sense‑check’ analysis results.
* Hands‑on experience with computer‑based modelling codes such as Abaqus, Ansys, Nastran, CFD, etc.
* Appreciation of code assessments in safety‑related industries (ASME, RCC‑M, KTA or comparable).
* Engineering degree (or equivalent).
* Full UK driving licence and ability to travel within the UK.
Desirable / Preferred
* Previous experience in similar roles in the nuclear or fusion industry.
* Hands‑on experience of 3D modelling in CAD software such as Autodesk Inventor, Catia or SolidWorks.
* Experience of fluid‑modelling such as CFD, or dynamic modelling such as LS‑Dyn or Radioss.
* Working towards Chartered Engineer status.
Additional Information
Attributes
* Excellent written and oral communication skills.
* Strong leadership skills.
* Focus on delivering quality output to time and budget.
* Act with integrity and instil this in others.
* Appreciation of wider technical issues beyond own discipline.
* Ability to work independently, using initiative and self‑motivation.
* Confidence in a multi‑party, multi‑national environment.
Additional Requirements
* BPSS and SC security clearance required.
* Ability to travel Assystem offices and customer sites within the UK.
* Commitment to undertake work packages supporting major UK and international nuclear clients.
Security Clearance
Applicants will be required to meet residency criteria to attain a minimum UK security clearance, if they are not already cleared to a minimum SC level.
Equal Opportunity
We are committed to equal treatment of candidates and promote all forms of diversity. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions.
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