️ About Assystem
At Assystem, our mission is to accelerate the global energy transition. With over 7,500 Switchers worldwide, we combine engineering expertise, project management, and digital innovation to deliver major infrastructure programmes. In the UK, we’re at the forefront of landmark projects including Hinkley Point C, Sizewell C, and future Small Modular Reactors (SMRs). By joining us, you’ll be contributing to some of the most exciting and important engineering challenges of our time.
Why Join the Community of Switchers?
At Assystem, you’ll be part of one of the top three largest nuclear engineering companies in the world. Joining us means working in a collaborative and supportive environment where innovation thrives. You’ll be empowered to grow your skills while contributing to cutting-edge projects that have a lasting global impact.
Job Description
The Job Mission
This is a hybrid role, and we are only able to consider candidates within a commutable distance of Bridgwater. For those relocating, we offer a relocation package to help with the move. You’ll be supporting the Commissioning & Operations team on one of the UK’s most complex nuclear builds. Your future team will rely on you to ensure that commissioning processes remain robust, consistent, and aligned with industry expectations.
- Develop and maintain end-to-end processes from design through to handover
- Ensure process compatibility with existing commissioning procedures and regulations
- Create and update process flow diagrams and technical documentation
- Collaborate with stakeholders to identify and resolve process issues
- Champion best practices and drive continuous improvement in commissioning activities
- Support internal reviews, workshops, and stakeholder meetings
- Use MS Visio, Excel, and Word to document clear and structured process steps
- Work with engineering teams to align process expectations across multiple disciplines
My profile
Essential Skills and Qualifications
- Mechanical Engineering background
- Ability to create and interpret process flow diagrams and system schematics
- Experience developing or improving technical processes or procedures
- Strong MS Office skills, particularly Visio and Excel
- Good analytical and structured problem-solving ability
- Experience in highly regulated environments
- Familiarity with project risk and quality control principles
- Understanding of CDM or Health & Safety frameworks
- Basic commercial or contractual awareness
- Knowledge of engineering assurance and compliance practices
Why Apply?
This is your chance to work on a project that defines the future of clean energy in the UK. You’ll join a forward-thinking organisation where your contribution directly supports a safer, more sustainable world. If you’re ready to take on the challenge and grow with your future team, apply today.
Benefits include:
Hybrid Working Opportunity
Flexible working hours
️ Pension scheme (8% company contribution / 4% personal contribution)
️ 25 days’ paid annual leave + bank holidays + option to buy or sell days
Professional fees reimbursed
Employee referral scheme
Competitive Sick Pay – Support when you need it
Income Protection & 3x Salary Death-in-Service Cover
Free Digital Gym Access – Expert-led fitness classes
24/7 Employee Support Line – Mental health, financial & legal help
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.
Are you a prospective or recent graduate?
Assystem offers you the opportunity to join our Switch to Grow UK Graduate Scheme, where you’ll gain hands on experience in engineering, digital services, and project management by working on some of the world’s most critical energy projects.
Be part of the challenge of the century; accelerating the switch to low carbon energy!
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