Graduate Mechanical Engineer
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 6, 2026. Assystem scores B on the Alion truth index.
Meeting the challenges of the energy transition and strengthening our sovereignty are among the key priorities of the 21st century. At the heart of these challenges, Assystem supports its clients in delivering their most strategic projects. To achieve this, our 8,000 Switchers leverage their expertise in engineering, project management, and digital solutions.
Operating in 13 countries (Europe, the Middle East, Central Asia, and North America), we contribute to the development of new nuclear power generation capacities, the operational maintenance of existing facilities, and the design and delivery of critical infrastructure, particularly in the defence sector.
Your Future Team
Are you a Mechanical Engineering graduate who is curious about how things are designed, built and improved? Join our two-year Graduate Programme and turn what you have learned into experience on live projects across Defence, New Build and Fusion and Modular Nuclear. You'll work alongside experienced engineers, build your confidence and develop the skills to shape a long-term career in engineering.
Your Responsibilities
From day one, you get involved in real engineering challenges. With support from mentors and technical experts, you build broad experience across teams and projects before developing deeper knowledge in the areas that interest you most.
Your main responsibilities include:
- Support mechanical design, specification and engineering assessment activities.
- Prepare calculations, technical notes, reports and engineering documentation.
- Take part in design reviews, technical meetings and multidisciplinary collaboration.
- Use engineering tools and apply relevant standards with guidance from experienced colleagues.
- Help teams identify and resolve technical issues, risks and interfaces.
Why Join Us?
Give purpose to your career by joining a company that contributes sustainably to the production of low-carbon, competitive, and sovereign energy.
Explore a wide variety of projects and careers within a strong group, ensuring stimulating and diverse assignments throughout your career.
Develop your skills through an ambitious training program: 5,000 employees trained and more than 100,000 training hours delivered each year.
Your Strengths and Requirements for Success
We’re looking for graduates who:
- Have, or expect to achieve, a degree in Mechanical Engineering, Mechanical Design Engineering or a closely related discipline.
- Are curious, motivated to learn and ready to put ideas into practice.
- Communicate clearly and enjoy working with others.
- Can think logically, solve problems and pay attention to detail.
- Are excited by the opportunity to build a career on complex projects.
Eligibility Requirements:
To join our Graduate Scheme, you must be a UK sole national and a UK resident, as this is required for the type of work we do. You’ll also need to be able to obtain a minimum of Baseline Personnel Security Standard (BPSS) clearance, with some roles requiring higher levels of clearance.
As part of the programme, you should also be willing to relocate or travel within the UK, and we’ll provide relocation support where needed.
More information on the security vetting process and clearance levels can be found on the UK Government website: National Security Vetting: clearance levels
Recruitment Process
After submitting your application, you’ll receive confirmation of next steps. If successful at screening, one of our recruitment team will call you to discuss:
Your application and eligibility
Your passion for energy transformation
Your interest in and knowledge of your chosen discipline
Successful applicants will then be invited to attend an in-person assessment centre at one of our UK offices.
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 people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.