Stress Engineer

Assystem GmbH; London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading engineering firm in the nuclear sector is seeking a Stress Engineer to join their Simulation and Assessment team. The role involves applying Finite Element Analysis (FEA) for project delivery, ensuring compliance with design codes. Candidates should have an engineering degree, strong communication skills, and experience in similar roles. This position offers the opportunity to work both on-site and remotely, with attractive benefits and career development opportunities.

Benefits

Attractive social benefits

Ongoing training and development

Holiday bonuses

Qualifications

• Experience in nuclear or fusion industry preferred.
• Hands-on experience with 3D modeling and fluid modeling.
• Excellent communication and leadership skills.

Responsibilities

• Conduct detailed assessments using FEA.
• Plan and deliver simulation projects within budget.
• Communicate with stakeholders and report findings.

Skills

Finite Element Analysis (FEA)

Technical report writing

Team collaboration

Commercial awareness

Problem-solving

Education

Engineering Degree or equivalent

Tools

ANSYS

Abaqus

Mathematical software (MathCAD)

CAD software (Autodesk Inventor, Catia, SolidWorks)

Job description

Our Vacancy# Stress Engineer* Nuclear* Permanent /* London* United Kingdom* 26/09/25* On site* Share##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!** Join our Simulation and Assessment team and contribute to the delivery of essential projects within the nuclear sector. In this role, you’ll apply your expertise in Finite Element Analysis (FEA) to perform detailed assessments of nuclear components, ensuring compliance with design codes such as ASME III and RCC-M. You’ll be involved in project planning, delivery, and reporting, and will communicate regularly with internal and external stakeholders, including client technical leads. This role offers the opportunity to work both within client teams and from our Assystem offices, providing a variety of project experiences.**Your mission:*** **Desire to learn**: Working with our experienced team you will be supported in developing skills and competencies on a range of projects and customers.* **Technical aptitude**: You will be responsible for planning, undertaking and reporting simulation and assessment projects using a range of tools, for example ANSYS or Abaqus FEA software, and calculations using MathCAD.* **Digital first:** Familiarity with typical engineering and data management software such as document control, Product Lifecycle Management, MS Office, TEAMS etc.* **Collaborative**: Working as part of a team you will be required to collaborate and communicate as part of a team, and be comfortable to work independently where appropriate.* **Delivery focused:** Driven to achieve milestones and produce high quality outputs to time and cost budgets.* **Commercially aware:** Understanding of the commercial context of project delivery including achieving milestones, management of requirements compliance, change and technical risk.* **Organised & Communicative:** Able to organise and plan effectively, and excellent communication skills.* **Report writing:** Ability to write high-quality, clear, concise and accurate technical reports.* Over 55 years in nuclear engineering.* Ranked among the top 3 largest nuclear engineering companies.* Attractive social benefits, including an engaging Employee Committee and holiday bonuses.* Ongoing training with numerous career opportunities.* 70% of our managers are promoted internally!* Hybrid work: 1-2 days remote per week.* Excellent technical fundamentals – aptitude for calculations, appreciation of structures, mechanics and fluids, an ability to ‘sense-check’ analysis results.* Hands-on experience of computer based modelling codes such as Abaqus, Ansys, Nastran, CFD etc.* Appreciation of code assessments in a safety related industry, for example ASME, RCC-M, KTA or comparable codes from other sectors.* Engineering Degree (or equivalent).* Full UK driving license and ability to travel within the UK.* 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-Dyna or Radioss.* Working towards Chartered Engineer status.**Attributes:****Additional Requirements:*** BPSS and SC required.* Ability to travel Assystem offices and customer sites within UK.* To undertake work packages supporting major UK and international Nuclear Clients.**Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level.**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.* Excellent communication skills, written and oral.* Strong leadership skills.* Focus on delivering quality output to time and budget.* Act with integrity and instils this in others.* Has an appreciation of wider technical issues beyond own discipline.* Ability to work with a high degree of independence, using their own initiative and self-motivation.* Confident in a multi-party, multi-national environment.