Job Description
Company Description
⚡️💡 About Assystem
At Assystem, our mission is to accelerate the global energy transition. With more 8000 Switchers worldwide, we combine engineering excellence and project management with digital innovation to deliver landmark projects like Hinkley Point C, Sizewell C and emerging SMR programmes. In the UK, our engineers are shaping the future of clean, secure energy through pioneering design and collaboration.
🤝 Why Join the Community of Switchers?
You’ll be joining one of the world’s three largest nuclear engineering companies, working alongside leading experts in energy and infrastructure. At Assystem, your future team will support your technical growth while you contribute to projects driving the UK’s low-carbon future.
Job Description
🚀 This is a hybrid role with regular site presence in Bristol, so candidates must be within commutable distance or open to supported relocation.
This role supports the design and documentation of critical nuclear security systems. The position focuses on producing and maintaining system design manuals for complex integrated systems. Your future team supports commissioning readiness and system documentation across the wider project.
📄Produce and maintain detailed System Design Manuals for nuclear security systems
🔧Develop system descriptions, component sizing, diagrams and technical documentation
🧠Define instrumentation and control functional requirements aligned with safety inputs
📊Apply EPR engineering rules when defining I&C platform allocations and logic
🧩Coordinate with layout, CAD and building teams to integrate system designs
🔍Conduct peer reviews of I&C documentation produced by engineering colleagues
⚙️Support commissioning teams with documentation and technical system inputs
📐Contribute to system logic testing, HMI definition and control system validation
🔁Manage system modifications and configuration changes across multidisciplinary teams
📚Ensure quality records and documentation support future system ownership
Qualifications
Nuclear experience is not essential, but is of course welcome. If you have worked within a highly regulated environment, your skills and approach are highly transferable and of strong interest to us.
We also recognise that the perfect candidate rarely exists. If you feel you meet around 80% of the criteria and are motivated to develop further, we would strongly encourage you to apply.
🎓Degree in Electrical Engineering, chartered status desirable
📘Experience producing technical documentation such as system design manuals
🔌Knowledge of electrical or integrated security systems in industrial environments
📡Experience with systems such as CCTV, access control or IP networks
🧩Understanding of instrumentation and control system principles
🏭Experience working on operating plants or complex industrial sites
📑Ability to manage technical documentation and engineering deliverables
🔍Understanding of safety classification and regulated engineering environments
🔐Ability to obtain or hold UK Security Clearance at SC level
Additional Information
🌟 Join us at Assystem and be part of a global team delivering some of the most exciting and complex engineering projects in the world. This is your chance to shape the UK’s energy future while developing your expertise in a unique environment.
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.
